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CSS 参考手册

CSS 参考手册 CSS 选择器 CSS 听觉参考手册 CSS Web安全字体 CSS 动画 CSS 函数 CSS 单位 CSS 颜色 CSS 合法颜色值 CSS 颜色名称 CSS 颜色十六进制值 CSS 浏览器支持 Sass 教程

CSS 属性

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 appearance backface-visibility background background-attachment background-blend-mode background-clip background-color background-image background-origin background-position background-repeat background-size border border-bottom border-bottom-color border-bottom-left-radius border-bottom-right-radius border-bottom-style border-bottom-width border-collapse border-color border-image border-image-outset border-image-repeat border-image-slice border-image-source border-image-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-style border-top border-top-color border-top-left-radius border-top-right-radius border-top-style border-top-width border-width bottom box-align box-direction box-flex box-flex-group box-lines box-ordinal-group box-orient box-pack box-shadow box-sizing caption-side clear clip color 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 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-size font-size-adjust font-stretch font-style font-variant font-weight @import grid-rows hanging-punctuation height icon justify-content @keyframes left letter-spacing line-height list-style list-style-image list-style-position list-style-type margin margin-bottom margin-left margin-right margin-top max-height max-width @media min-height min-width mix-blend-mode object-fit object-position nav-down nav-index nav-left nav-right nav-up opacity order outline outline-color outline-offset outline-style outline-width overflow overflow-x overflow-y padding padding-bottom padding-left padding-right padding-top page-break-after page-break-before page-break-inside perspective perspective-origin position punctuation-trim quotes resize right rotation tab-size table-layout target target-name target-new target-position text-align text-align-last text-decoration text-decoration-color text-decoration-line text-decoration-style text-indent text-justify text-outline text-overflow text-shadow text-transform text-wrap top transform transform-origin transform-style transition transition-delay transition-duration transition-property transition-timing-function unicode-bidi vertical-align visibility white-space width word-break word-spacing word-wrap z-index writing-mode gird gap row-gap grid-area grid-auto-columns grid-auto-rows grid-auto-flow grid-column grid-column-start grid-column-end grid-column-gap grid-gap grid-row-gap grid-row-end grid-row-start grid-template grid-template-areas grid-template-columns grid-template-rows grid-row @charset clip-path pointer-events backdrop-filte

CSS3 :last-child 选择器

CSS3 :empty 选择器

(追記) (追記ここまで)

CSS3 :root 选择器

CSS完整选择器完整CSS选择器参考手册

实例

设置HTML文档的背景色:

:root{background:#ff0000; }

尝试一下 »

定义和用法

:root选择器用匹配文档的根元素。

在HTML中根元素始终是HTML元素。

浏览器支持

表格中的数字表示支持该属性的第一个浏览器版本号。

选择器
:root	4.0	9.0	3.5	3.2	9.6

CSS完整选择器完整CSS选择器参考手册

AI 思考中...

CSS3 :last-child 选择器

CSS3 :empty 选择器

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