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CSS 参考手册

CSS 浏览器支持 CSS 选择器 CSS 伪元素 CSS 组合符 CSS 函数 CSS 参考 (听觉) CSS 网页安全字体 CSS 字体回退 CSS 可动画属性 CSS PX 到 EM 转换器 CSS 颜色 CSS 颜色值 CSS 默认值 CSS 实体

CSS 属性

accent-color align-content align-items align-self all animation animation-delay animation-direction animation-duration animation-fill-mode animation-iteration-count animation-name animation-play-state animation-timing-function aspect-ratio backdrop-filter backface-visibility background background-attachment background-blend-mode background-clip background-color background-image background-origin background-position background-position-x background-position-y background-repeat background-size block-size border border-block border-block-color border-block-end border-block-end-color border-block-end-style border-block-end-width border-block-start border-block-start-color border-block-start-style border-block-start-width border-block-style border-block-width border-bottom border-bottom-color border-bottom-left-radius border-bottom-right-radius border-bottom-style border-bottom-width border-collapse border-color border-end-end-radius border-end-start-radius border-image border-image-outset border-image-repeat border-image-slice border-image-source border-image-width border-inline border-inline-color border-inline-end border-inline-end-color border-inline-end-style border-inline-end-width border-inline-start border-inline-start-color border-inline-start-style border-inline-start-width border-inline-style border-inline-width border-left border-left-color border-left-style border-left-width border-radius border-right border-right-color border-right-style border-right-width border-spacing border-start-end-radius border-start-start-radius border-style border-top border-top-color border-top-left-radius border-top-right-radius border-top-style border-top-width border-width bottom box-decoration-break box-reflect box-shadow box-sizing break-after break-before break-inside caption-side caret-color @charset clear clip clip-path color color-scheme column-count column-fill column-gap column-rule column-rule-color column-rule-style column-rule-width column-span column-width columns content counter-increment counter-reset counter-set cursor direction display empty-cells filter flex flex-basis flex-direction flex-flow flex-grow flex-shrink flex-wrap float font @font-face font-family font-feature-settings font-kerning font-size font-size-adjust font-stretch font-style font-variant font-variant-caps font-weight gap grid grid-area grid-auto-columns grid-auto-flow grid-auto-rows grid-column grid-column-end grid-column-start grid-row grid-row-end grid-row-start grid-template grid-template-areas grid-template-columns grid-template-rows hanging-punctuation height hyphens hyphenate-character image-rendering @import initial-letter inline-size inset inset-block inset-block-end inset-block-start inset-inline inset-inline-end inset-inline-start isolation justify-content justify-items justify-self @keyframes left letter-spacing line-height list-style list-style-image list-style-position list-style-type margin margin-block margin-block-end margin-block-start margin-bottom margin-inline margin-inline-end margin-inline-start margin-left margin-right margin-top marker marker-end marker-mid marker-start mask mask-clip mask-composite mask-image mask-mode mask-origin mask-position mask-repeat mask-size mask-type max-height max-width @media max-block-size max-inline-size min-block-size min-inline-size min-height min-width mix-blend-mode object-fit object-position offset offset-anchor offset-distance offset-path offset-position offset-rotate opacity order orphans outline outline-color outline-offset outline-style outline-width overflow overflow-anchor overflow-wrap overflow-x overflow-y overscroll-behavior overscroll-behavior-block overscroll-behavior-inline overscroll-behavior-x overscroll-behavior-y padding padding-block padding-block-end padding-block-start padding-bottom padding-inline padding-inline-end padding-inline-start padding-left padding-right padding-top page-break-after page-break-before page-break-inside paint-order perspective perspective-origin place-content place-items place-self pointer-events position @property quotes resize right rotate row-gap scale scroll-behavior scroll-margin scroll-margin-block scroll-margin-block-end scroll-margin-block-start scroll-margin-bottom scroll-margin-inline scroll-margin-inline-end scroll-margin-inline-start scroll-margin-left scroll-margin-right scroll-margin-top scroll-padding scroll-padding-block scroll-padding-block-end scroll-padding-block-start scroll-padding-bottom scroll-padding-inline scroll-padding-inline-end scroll-padding-inline-start scroll-padding-left scroll-padding-right scroll-padding-top scroll-snap-align scroll-snap-type scrollbar-color scroll-snap-stop tab-size table-layout text-align text-align-last text-decoration text-decoration-color text-decoration-line text-decoration-style text-decoration-thickness text-emphasis text-emphasis-color text-emphasis-position text-emphasis-style text-indent text-justify text-orientation text-overflow text-shadow text-transform text-underline-offset text-underline-position top transform transform-origin transform-style transition transition-delay transition-duration transition-property transition-timing-function translate unicode-bidi user-select vertical-align visibility white-space widows width word-break word-spacing word-wrap writing-mode z-index zoom

CSS 听觉参考


听觉样式表

听觉样式表结合了语音合成和声音效果,让用户听取信息,而不是阅读信息。

听觉呈现可以用于

  • 盲人
  • 帮助学习阅读的用户
  • 帮助有阅读困难的用户
  • 家庭娱乐
  • 在汽车里
  • 有阅读障碍的社区

听觉呈现将文档转换为纯文本,然后将其提供给屏幕阅读器(一种读取屏幕上所有字符的程序)。

听觉样式表的实例

@media aural {
  h1, h2, h3, h4 {
    voice-family: male;
    richness: 80;
    cue-before: url("beep.au")
  }
}

上面的例子将使语音合成器播放一个声音,然后用非常丰富的男性声音说出标题。

注意: aural CSS 媒体类型已被弃用。


CSS 听觉参考

属性 描述
azimuth 设置声音应来自何处 angle
left-side
far-left
left
center-left
center
center-right
right
far-right
right-side
behind
leftwards
rightwards
cue 在一处声明中设置 cue 属性 cue-before
cue-after
cue-after 指定在朗读完元素内容后播放的声音 none
url
cue-before 指定在朗读元素内容前播放的声音 none
url
elevation 设置声音应来自何处 angle
below
level
above
higher
lower
pause 在一处声明中设置 pause 属性 pause-before
pause-after
pause-after 在朗读完元素内容后指定一个停顿 time
%
pause-before 在朗读元素内容前指定一个停顿 time
%
pitch 指定说话的声音 frequency
x-low
low
medium
high
x-high
pitch-range 指定说话声音的变化。(单调的声音还是活泼的声音?) 数字
play-during 指定在朗读元素内容时播放的声音 auto
none
url
mix
重复
richness 指定说话声音的丰富度。(丰富的声音还是单薄的声音?) 数字
speak 指定内容是否会进行听觉渲染 normal
none
spell-out
speak-header 指定如何处理表头。表头应该在每个单元格前被朗读,还是只在与前一个单元格表头不同的单元格前朗读? always
once
speak-numeral 指定如何朗读数字 digits
continuous
speak-punctuation 指定如何朗读标点符号 none
代码
speech-rate 指定说话的速度 数字
x-slow
slow
medium
fast
x-fast
faster
slower
stress 指定说话声音的“重音” 数字
voice-family 指定说话的声音家族 specific-voice
generic-voice
volume 指定说话的音量 number
%
silent
x-soft
soft
medium
loud
x-loud

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