E:first-of-type - [ CSS 4.2.4参考手册 ] - 在线原生手册 - php.cn

CSS 4.2.4参考手册

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简介更新历史关于样式表属性定位布局 position z-index top right bottom left clip display float clear visibility overflow overflow-x overflow-y 尺寸 width min-width max-width height min-height max-height 外补白 margin margin-top margin-right margin-bottom margin-left 内补白 padding padding-top padding-right padding-bottom padding-left 边框 border border-width border-style border-color border-top border-top-width border-top-style border-top-color border-right border-right-width border-right-style border-right-color border-bottom border-bottom-width border-bottom-style border-bottom-style border-bottom-color border-left border-left-width border-left-style border-left-color border-radius border-top-left-radius border-top-right-radius border-bottom-right-radius border-bottom-left-radius box-shadow border-image border-image-source border-image-slice border-image-width border-image-outset border-image-repeat 背景 background background-color background-image background-repeat background-attachment background-position background-origin background-clip background-size 颜色 color opacity 字体 font font-style font-variant font-weight font-size font-family font-stretch font-size-adjust 文本 text-transform white-space tab-size word-break word-wrap overflow-wrap text-align text-align-last text-justify word-spacing letter-spacing text-indent vertical-align line-height text-size-adjust 文本装饰 text-decoration text-decoration-line text-decoration-color text-decoration-style text-decoration-skip text-underline-position text-shadow 书写模式 direction unicode-bidi writing-mode 列表 list-style list-style-image list-style-position list-style-type 表格 table-layout border-collapse border-spacing caption-side empty-cells 内容 content counter-increment counter-reset quotes 用户界面 appearance text-overflow outline outline-width outline-color outline-style outline-offset nav-index nav-up nav-right nav-down nav-left cursor zoom box-sizing resize ime-mode user-select pointer-events 多列 columns column-width column-count column-gap column-rule column-rule-width column-rule-style column-rule-color column-span column-fill column-break-before column-break-after column-break-inside 伸缩盒（旧）box-orient box-pack box-align box-flex box-flex-group box-ordinal-group box-direction box-lines 伸缩盒(新)flex flex-grow flex-shrink flex-basis flex-flow flex-direction flex-wrap align-content align-items align-self justify-content order 变换 transform transform-origin transform-style perspective perspective-origin backface-visibility 过渡 transition transition-property transition-duration transition-timing-function transition-delay 动画 animation animation-name animation-duration animation-timing-function animation-delay animation-iteration-count animation-direction animation-play-state animation-fill-mode 打印 page page-break-before page-break-after page-break-inside 媒体查询 width height device-width device-height orientation aspect-ratio device-aspect-ratio color color-index monochrome resolution scan grid Only IE scrollbar-3dlight-color scrollbar-darkshadow-color scrollbar-highlight-color scrollbar-shadow-color scrollbar-arrow-color scrollbar-face-color scrollbar-track-color scrollbar-base-color filter behavior Only webkit -webkit-text-fill-color -webkit-text-stroke -webkit-text-stroke-width -webkit-text-stroke-color -webkit-box-reflect -webkit-tap-highlight-color -webkit-user-drag -webkit-overflow-scrolling 选择符元素选择符通配选择符(*)类型选择符(E)ID选择符(E#id)类选择符(E.class)关系选择符包含选择符(E F)子选择符(E>F)相邻选择符(E+F)兄弟选择符(E~F)属性选择符 E[att]E[att="val"]E[att~="val"]E[att^="val"]E[att$="val"]E[att*="val"]E[att|="val"]伪类选择符 E:link E:visited E:hover E:active E:focus E:lang(fr)E:not(s)E:root E:first-child E:last-child E:only-child E:nth-child(n)E:nth-last-child(n)E:first-of-type E:last-of-type E:only-of-type E:nth-of-type(n)E:nth-last-of-type(n)E:empty E:checked E:enabled E:disabled E:target @page:first @page:left @page:right 伪对象选择符 E:first-letter/E::first-letter E:first-line/E::first-line E:before/E::before E:after/E::after E::placeholder E::selection 语法与规则 !important /*comment*/@import @charset @media @font-face @page @keyframes @supports 取值与单位长度 <length>em ex ch rem vw vh vmax vmin cm mm q in pt pc px 角度 <angle>deg grad rad turn 时间 <time>s ms 频率 <frequency>Hz kHz 布局 <fraction><grid>fr gr 分辨率 <resolution>dpi dpcm dppx 颜色 <color>Color Name HEX RGB RGBA HSL HSLA transparent currentColor 文本 inherit initial unset <string><url><identifier>函数 calc()toggle()生成内容 counter()counters()attr()图像 <image>image()image-set()<gradient>linear-gradient()radial-gradient()repeating-linear-gradient()repeating-radial-gradient()数字 <number><integer><percentage>附录颜色关键字媒体类型 CSS Hack 条件Hack 属性级Hack 选择符级Hack 问题和经验 Bugs和解决方案技巧和经验其它经验

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文字

语法：

E:first-of-type { sRules }

说明：

匹配同类型中的第一个同级兄弟元素E。

要使该属性生效，E元素必须是某个元素的子元素，E的父元素最高是html，即E可以是html的子元素，也就是说E可以是body
该选择符总是能命中父元素的第1个为E的子元素，不论第1个子元素是否为E

兼容性：

IE	Firefox	Chrome	Safari	Opera	iOS Safari	Android Browser	Android Chrome
6.0-8.0	2.0+	4.0+	3.1+	3.5+	3.2+	2.1+	18.0+
IE9.0+	2.0+	4.0+	3.1+	3.5+	3.2+	2.1+	18.0+

示例：

实例

<!DOCTYPE html>
<html lang="zh-cmn-Hans">
<head>
<meta charset="utf-8" />
<title>结构性伪类选择符 E:first-of-type_CSS参考手册_web前端开发参考手册系列</title>
<meta name="author" content="Joy Du(飘零雾雨), dooyoe@gmail.com, www.doyoe.com" />
<style>
p:first-of-type {
	color: #f00;
}
</style>
</head>
<body>
<div class="test">
	<div>我是一个div元素</div>
	<p>我是一个p元素</p>
	<p>我是一个p元素</p>
</div>
</body>
</html>

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