/**
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* cssfilter
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*
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* @author 老雷<leizongmin@gmail.com>
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*/
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function getDefaultWhiteList () {
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// 白名单值说明：
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// true: 允许该属性
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// Function: function (val) { } 返回true表示允许该属性，其他值均表示不允许
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// RegExp: regexp.test(val) 返回true表示允许该属性，其他值均表示不允许
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// 除上面列出的值外均表示不允许
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var whiteList = {};
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whiteList['align-content'] = false; // default: auto
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whiteList['align-items'] = false; // default: auto
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whiteList['align-self'] = false; // default: auto
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whiteList['alignment-adjust'] = false; // default: auto
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whiteList['alignment-baseline'] = false; // default: baseline
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whiteList['all'] = false; // default: depending on individual properties
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whiteList['anchor-point'] = false; // default: none
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whiteList['animation'] = false; // default: depending on individual properties
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whiteList['animation-delay'] = false; // default: 0
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whiteList['animation-direction'] = false; // default: normal
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whiteList['animation-duration'] = false; // default: 0
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whiteList['animation-fill-mode'] = false; // default: none
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whiteList['animation-iteration-count'] = false; // default: 1
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whiteList['animation-name'] = false; // default: none
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whiteList['animation-play-state'] = false; // default: running
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whiteList['animation-timing-function'] = false; // default: ease
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whiteList['azimuth'] = false; // default: center
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whiteList['backface-visibility'] = false; // default: visible
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whiteList['background'] = true; // default: depending on individual properties
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whiteList['background-attachment'] = true; // default: scroll
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whiteList['background-clip'] = true; // default: border-box
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whiteList['background-color'] = true; // default: transparent
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whiteList['background-image'] = true; // default: none
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whiteList['background-origin'] = true; // default: padding-box
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whiteList['background-position'] = true; // default: 0% 0%
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whiteList['background-repeat'] = true; // default: repeat
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whiteList['background-size'] = true; // default: auto
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whiteList['baseline-shift'] = false; // default: baseline
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whiteList['binding'] = false; // default: none
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whiteList['bleed'] = false; // default: 6pt
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whiteList['bookmark-label'] = false; // default: content()
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whiteList['bookmark-level'] = false; // default: none
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whiteList['bookmark-state'] = false; // default: open
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whiteList['border'] = true; // default: depending on individual properties
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whiteList['border-bottom'] = true; // default: depending on individual properties
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whiteList['border-bottom-color'] = true; // default: current color
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whiteList['border-bottom-left-radius'] = true; // default: 0
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whiteList['border-bottom-right-radius'] = true; // default: 0
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whiteList['border-bottom-style'] = true; // default: none
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whiteList['border-bottom-width'] = true; // default: medium
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whiteList['border-collapse'] = true; // default: separate
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whiteList['border-color'] = true; // default: depending on individual properties
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whiteList['border-image'] = true; // default: none
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whiteList['border-image-outset'] = true; // default: 0
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whiteList['border-image-repeat'] = true; // default: stretch
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whiteList['border-image-slice'] = true; // default: 100%
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whiteList['border-image-source'] = true; // default: none
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whiteList['border-image-width'] = true; // default: 1
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whiteList['border-left'] = true; // default: depending on individual properties
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whiteList['border-left-color'] = true; // default: current color
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whiteList['border-left-style'] = true; // default: none
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whiteList['border-left-width'] = true; // default: medium
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whiteList['border-radius'] = true; // default: 0
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whiteList['border-right'] = true; // default: depending on individual properties
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whiteList['border-right-color'] = true; // default: current color
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whiteList['border-right-style'] = true; // default: none
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whiteList['border-right-width'] = true; // default: medium
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whiteList['border-spacing'] = true; // default: 0
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whiteList['border-style'] = true; // default: depending on individual properties
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whiteList['border-top'] = true; // default: depending on individual properties
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whiteList['border-top-color'] = true; // default: current color
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whiteList['border-top-left-radius'] = true; // default: 0
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whiteList['border-top-right-radius'] = true; // default: 0
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whiteList['border-top-style'] = true; // default: none
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whiteList['border-top-width'] = true; // default: medium
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whiteList['border-width'] = true; // default: depending on individual properties
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whiteList['bottom'] = false; // default: auto
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whiteList['box-decoration-break'] = true; // default: slice
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whiteList['box-shadow'] = true; // default: none
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whiteList['box-sizing'] = true; // default: content-box
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whiteList['box-snap'] = true; // default: none
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whiteList['box-suppress'] = true; // default: show
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whiteList['break-after'] = true; // default: auto
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whiteList['break-before'] = true; // default: auto
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whiteList['break-inside'] = true; // default: auto
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whiteList['caption-side'] = false; // default: top
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whiteList['chains'] = false; // default: none
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whiteList['clear'] = true; // default: none
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whiteList['clip'] = false; // default: auto
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whiteList['clip-path'] = false; // default: none
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whiteList['clip-rule'] = false; // default: nonzero
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whiteList['color'] = true; // default: implementation dependent
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whiteList['color-interpolation-filters'] = true; // default: auto
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whiteList['column-count'] = false; // default: auto
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whiteList['column-fill'] = false; // default: balance
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whiteList['column-gap'] = false; // default: normal
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whiteList['column-rule'] = false; // default: depending on individual properties
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whiteList['column-rule-color'] = false; // default: current color
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whiteList['column-rule-style'] = false; // default: medium
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whiteList['column-rule-width'] = false; // default: medium
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whiteList['column-span'] = false; // default: none
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whiteList['column-width'] = false; // default: auto
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whiteList['columns'] = false; // default: depending on individual properties
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whiteList['contain'] = false; // default: none
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whiteList['content'] = false; // default: normal
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whiteList['counter-increment'] = false; // default: none
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whiteList['counter-reset'] = false; // default: none
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whiteList['counter-set'] = false; // default: none
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whiteList['crop'] = false; // default: auto
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whiteList['cue'] = false; // default: depending on individual properties
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whiteList['cue-after'] = false; // default: none
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whiteList['cue-before'] = false; // default: none
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whiteList['cursor'] = false; // default: auto
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whiteList['direction'] = false; // default: ltr
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whiteList['display'] = true; // default: depending on individual properties
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whiteList['display-inside'] = true; // default: auto
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whiteList['display-list'] = true; // default: none
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whiteList['display-outside'] = true; // default: inline-level
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whiteList['dominant-baseline'] = false; // default: auto
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whiteList['elevation'] = false; // default: level
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whiteList['empty-cells'] = false; // default: show
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whiteList['filter'] = false; // default: none
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whiteList['flex'] = false; // default: depending on individual properties
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whiteList['flex-basis'] = false; // default: auto
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whiteList['flex-direction'] = false; // default: row
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whiteList['flex-flow'] = false; // default: depending on individual properties
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whiteList['flex-grow'] = false; // default: 0
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whiteList['flex-shrink'] = false; // default: 1
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whiteList['flex-wrap'] = false; // default: nowrap
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whiteList['float'] = false; // default: none
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whiteList['float-offset'] = false; // default: 0 0
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whiteList['flood-color'] = false; // default: black
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whiteList['flood-opacity'] = false; // default: 1
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whiteList['flow-from'] = false; // default: none
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whiteList['flow-into'] = false; // default: none
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whiteList['font'] = true; // default: depending on individual properties
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whiteList['font-family'] = true; // default: implementation dependent
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whiteList['font-feature-settings'] = true; // default: normal
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whiteList['font-kerning'] = true; // default: auto
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whiteList['font-language-override'] = true; // default: normal
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whiteList['font-size'] = true; // default: medium
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whiteList['font-size-adjust'] = true; // default: none
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whiteList['font-stretch'] = true; // default: normal
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whiteList['font-style'] = true; // default: normal
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whiteList['font-synthesis'] = true; // default: weight style
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whiteList['font-variant'] = true; // default: normal
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whiteList['font-variant-alternates'] = true; // default: normal
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whiteList['font-variant-caps'] = true; // default: normal
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whiteList['font-variant-east-asian'] = true; // default: normal
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whiteList['font-variant-ligatures'] = true; // default: normal
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whiteList['font-variant-numeric'] = true; // default: normal
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whiteList['font-variant-position'] = true; // default: normal
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whiteList['font-weight'] = true; // default: normal
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whiteList['grid'] = false; // default: depending on individual properties
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whiteList['grid-area'] = false; // default: depending on individual properties
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whiteList['grid-auto-columns'] = false; // default: auto
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whiteList['grid-auto-flow'] = false; // default: none
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whiteList['grid-auto-rows'] = false; // default: auto
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whiteList['grid-column'] = false; // default: depending on individual properties
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whiteList['grid-column-end'] = false; // default: auto
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whiteList['grid-column-start'] = false; // default: auto
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whiteList['grid-row'] = false; // default: depending on individual properties
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whiteList['grid-row-end'] = false; // default: auto
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whiteList['grid-row-start'] = false; // default: auto
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whiteList['grid-template'] = false; // default: depending on individual properties
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whiteList['grid-template-areas'] = false; // default: none
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whiteList['grid-template-columns'] = false; // default: none
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whiteList['grid-template-rows'] = false; // default: none
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whiteList['hanging-punctuation'] = false; // default: none
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whiteList['height'] = true; // default: auto
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whiteList['hyphens'] = false; // default: manual
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whiteList['icon'] = false; // default: auto
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whiteList['image-orientation'] = false; // default: auto
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whiteList['image-resolution'] = false; // default: normal
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whiteList['ime-mode'] = false; // default: auto
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whiteList['initial-letters'] = false; // default: normal
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whiteList['inline-box-align'] = false; // default: last
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whiteList['justify-content'] = false; // default: auto
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whiteList['justify-items'] = false; // default: auto
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whiteList['justify-self'] = false; // default: auto
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whiteList['left'] = false; // default: auto
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whiteList['letter-spacing'] = true; // default: normal
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whiteList['lighting-color'] = true; // default: white
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whiteList['line-box-contain'] = false; // default: block inline replaced
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whiteList['line-break'] = false; // default: auto
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whiteList['line-grid'] = false; // default: match-parent
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whiteList['line-height'] = false; // default: normal
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whiteList['line-snap'] = false; // default: none
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whiteList['line-stacking'] = false; // default: depending on individual properties
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whiteList['line-stacking-ruby'] = false; // default: exclude-ruby
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whiteList['line-stacking-shift'] = false; // default: consider-shifts
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whiteList['line-stacking-strategy'] = false; // default: inline-line-height
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whiteList['list-style'] = true; // default: depending on individual properties
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whiteList['list-style-image'] = true; // default: none
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whiteList['list-style-position'] = true; // default: outside
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whiteList['list-style-type'] = true; // default: disc
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whiteList['margin'] = true; // default: depending on individual properties
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whiteList['margin-bottom'] = true; // default: 0
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whiteList['margin-left'] = true; // default: 0
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whiteList['margin-right'] = true; // default: 0
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whiteList['margin-top'] = true; // default: 0
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whiteList['marker-offset'] = false; // default: auto
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whiteList['marker-side'] = false; // default: list-item
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whiteList['marks'] = false; // default: none
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whiteList['mask'] = false; // default: border-box
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whiteList['mask-box'] = false; // default: see individual properties
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whiteList['mask-box-outset'] = false; // default: 0
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whiteList['mask-box-repeat'] = false; // default: stretch
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whiteList['mask-box-slice'] = false; // default: 0 fill
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whiteList['mask-box-source'] = false; // default: none
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whiteList['mask-box-width'] = false; // default: auto
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whiteList['mask-clip'] = false; // default: border-box
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whiteList['mask-image'] = false; // default: none
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whiteList['mask-origin'] = false; // default: border-box
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whiteList['mask-position'] = false; // default: center
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whiteList['mask-repeat'] = false; // default: no-repeat
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whiteList['mask-size'] = false; // default: border-box
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whiteList['mask-source-type'] = false; // default: auto
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whiteList['mask-type'] = false; // default: luminance
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whiteList['max-height'] = true; // default: none
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whiteList['max-lines'] = false; // default: none
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whiteList['max-width'] = true; // default: none
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whiteList['min-height'] = true; // default: 0
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whiteList['min-width'] = true; // default: 0
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whiteList['move-to'] = false; // default: normal
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whiteList['nav-down'] = false; // default: auto
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whiteList['nav-index'] = false; // default: auto
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whiteList['nav-left'] = false; // default: auto
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whiteList['nav-right'] = false; // default: auto
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whiteList['nav-up'] = false; // default: auto
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whiteList['object-fit'] = false; // default: fill
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whiteList['object-position'] = false; // default: 50% 50%
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whiteList['opacity'] = false; // default: 1
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whiteList['order'] = false; // default: 0
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whiteList['orphans'] = false; // default: 2
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whiteList['outline'] = false; // default: depending on individual properties
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whiteList['outline-color'] = false; // default: invert
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whiteList['outline-offset'] = false; // default: 0
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whiteList['outline-style'] = false; // default: none
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whiteList['outline-width'] = false; // default: medium
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whiteList['overflow'] = false; // default: depending on individual properties
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whiteList['overflow-wrap'] = false; // default: normal
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whiteList['overflow-x'] = false; // default: visible
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whiteList['overflow-y'] = false; // default: visible
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whiteList['padding'] = true; // default: depending on individual properties
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whiteList['padding-bottom'] = true; // default: 0
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whiteList['padding-left'] = true; // default: 0
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whiteList['padding-right'] = true; // default: 0
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whiteList['padding-top'] = true; // default: 0
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whiteList['page'] = false; // default: auto
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whiteList['page-break-after'] = false; // default: auto
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whiteList['page-break-before'] = false; // default: auto
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whiteList['page-break-inside'] = false; // default: auto
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whiteList['page-policy'] = false; // default: start
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whiteList['pause'] = false; // default: implementation dependent
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whiteList['pause-after'] = false; // default: implementation dependent
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whiteList['pause-before'] = false; // default: implementation dependent
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whiteList['perspective'] = false; // default: none
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whiteList['perspective-origin'] = false; // default: 50% 50%
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whiteList['pitch'] = false; // default: medium
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whiteList['pitch-range'] = false; // default: 50
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whiteList['play-during'] = false; // default: auto
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whiteList['position'] = false; // default: static
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whiteList['presentation-level'] = false; // default: 0
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whiteList['quotes'] = false; // default: text
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whiteList['region-fragment'] = false; // default: auto
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whiteList['resize'] = false; // default: none
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whiteList['rest'] = false; // default: depending on individual properties
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whiteList['rest-after'] = false; // default: none
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whiteList['rest-before'] = false; // default: none
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whiteList['richness'] = false; // default: 50
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whiteList['right'] = false; // default: auto
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whiteList['rotation'] = false; // default: 0
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whiteList['rotation-point'] = false; // default: 50% 50%
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whiteList['ruby-align'] = false; // default: auto
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whiteList['ruby-merge'] = false; // default: separate
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whiteList['ruby-position'] = false; // default: before
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whiteList['shape-image-threshold'] = false; // default: 0.0
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whiteList['shape-outside'] = false; // default: none
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whiteList['shape-margin'] = false; // default: 0
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whiteList['size'] = false; // default: auto
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whiteList['speak'] = false; // default: auto
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whiteList['speak-as'] = false; // default: normal
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whiteList['speak-header'] = false; // default: once
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whiteList['speak-numeral'] = false; // default: continuous
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whiteList['speak-punctuation'] = false; // default: none
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whiteList['speech-rate'] = false; // default: medium
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whiteList['stress'] = false; // default: 50
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whiteList['string-set'] = false; // default: none
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whiteList['tab-size'] = false; // default: 8
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whiteList['table-layout'] = false; // default: auto
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whiteList['text-align'] = true; // default: start
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whiteList['text-align-last'] = true; // default: auto
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whiteList['text-combine-upright'] = true; // default: none
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whiteList['text-decoration'] = true; // default: none
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whiteList['text-decoration-color'] = true; // default: currentColor
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whiteList['text-decoration-line'] = true; // default: none
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whiteList['text-decoration-skip'] = true; // default: objects
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whiteList['text-decoration-style'] = true; // default: solid
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whiteList['text-emphasis'] = true; // default: depending on individual properties
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whiteList['text-emphasis-color'] = true; // default: currentColor
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whiteList['text-emphasis-position'] = true; // default: over right
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whiteList['text-emphasis-style'] = true; // default: none
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whiteList['text-height'] = true; // default: auto
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whiteList['text-indent'] = true; // default: 0
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whiteList['text-justify'] = true; // default: auto
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whiteList['text-orientation'] = true; // default: mixed
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whiteList['text-overflow'] = true; // default: clip
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whiteList['text-shadow'] = true; // default: none
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whiteList['text-space-collapse'] = true; // default: collapse
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whiteList['text-transform'] = true; // default: none
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whiteList['text-underline-position'] = true; // default: auto
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whiteList['text-wrap'] = true; // default: normal
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whiteList['top'] = false; // default: auto
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whiteList['transform'] = false; // default: none
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whiteList['transform-origin'] = false; // default: 50% 50% 0
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whiteList['transform-style'] = false; // default: flat
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whiteList['transition'] = false; // default: depending on individual properties
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whiteList['transition-delay'] = false; // default: 0s
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whiteList['transition-duration'] = false; // default: 0s
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whiteList['transition-property'] = false; // default: all
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whiteList['transition-timing-function'] = false; // default: ease
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whiteList['unicode-bidi'] = false; // default: normal
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whiteList['vertical-align'] = false; // default: baseline
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whiteList['visibility'] = false; // default: visible
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whiteList['voice-balance'] = false; // default: center
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whiteList['voice-duration'] = false; // default: auto
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whiteList['voice-family'] = false; // default: implementation dependent
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whiteList['voice-pitch'] = false; // default: medium
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whiteList['voice-range'] = false; // default: medium
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whiteList['voice-rate'] = false; // default: normal
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whiteList['voice-stress'] = false; // default: normal
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whiteList['voice-volume'] = false; // default: medium
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whiteList['volume'] = false; // default: medium
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whiteList['white-space'] = false; // default: normal
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whiteList['widows'] = false; // default: 2
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whiteList['width'] = true; // default: auto
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whiteList['will-change'] = false; // default: auto
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whiteList['word-break'] = true; // default: normal
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whiteList['word-spacing'] = true; // default: normal
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whiteList['word-wrap'] = true; // default: normal
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whiteList['wrap-flow'] = false; // default: auto
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whiteList['wrap-through'] = false; // default: wrap
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whiteList['writing-mode'] = false; // default: horizontal-tb
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whiteList['z-index'] = false; // default: auto
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return whiteList;
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}
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/**
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* 匹配到白名单上的一个属性时
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*
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* @param {String} name
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* @param {String} value
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* @param {Object} options
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* @return {String}
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*/
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function onAttr (name, value, options) {
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// do nothing
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}
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/**
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* 匹配到不在白名单上的一个属性时
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*
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* @param {String} name
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* @param {String} value
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* @param {Object} options
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* @return {String}
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*/
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function onIgnoreAttr (name, value, options) {
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// do nothing
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}
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var REGEXP_URL_JAVASCRIPT = /javascript\s*\:/img;
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/**
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* 过滤属性值
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*
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* @param {String} name
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* @param {String} value
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* @return {String}
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*/
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function safeAttrValue(name, value) {
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if (REGEXP_URL_JAVASCRIPT.test(value)) return '';
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return value;
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}
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exports.whiteList = getDefaultWhiteList();
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exports.getDefaultWhiteList = getDefaultWhiteList;
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exports.onAttr = onAttr;
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exports.onIgnoreAttr = onIgnoreAttr;
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exports.safeAttrValue = safeAttrValue;
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