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CSS 参考

CSS 参考 CSS 选择器 CSS 功能 CSS 参考听觉 CSS 网络安全字体 CSS 动画 CSS 单位 CSS PX-EM转换器 CSS 颜色 CSS 颜色 值 CSS3 浏览器支持

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 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-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 hanging-punctuation height 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 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 quotes resize right tab-size table-layout text-align text-align-last text-decoration text-decoration-color text-decoration-line text-decoration-style text-indent text-justify text-overflow text-shadow text-transform 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



 

CSS content Property


以下示例将在每个链接后面的括号的网址:

a:after {
    content: " (" attr(href) ")";
}
试一试»

更多"Try it Yourself"下面的例子。


定义和用法

内容属性是用来与:before和:after伪元素,插入生成的内容。

默认值: normal
遗传: no
动画: no. Read about animatable
版: CSS2
JavaScript语法: You can't give an element a pseudo-class by using JavaScript,
but there are other ways to get the same result: Try it

浏览器支持

在表中的数字规定,完全支持该属性的第一个浏览器版本。

属性
content 1.0 8 1.0 1.0 4

Note: IE8只支持内容属性如果指定了DOCTYPE的!


CSS语法

content: normal|none|counter|attr|string|open-quote|close-quote|no-open-quote|no-close-quote|url|initial|inherit;

属性值

描述
normal 默认值。 设置的内容,如果指定的,正常的,它默认为"none" (which is nothing) Try it »
none 设置的内容,如果指定,不了了之 Try it »
counter 设置内容为计数器 Try it »
attr (attribute) 设置内容为一体的selector's属性 Try it »
string 设置内容到您指定的文字 Try it »
open-quote 设置内容是一个开引号 Try it »
close-quote 设置内容是收盘报价 Try it »
no-open-quote 从内容中删除开盘报价,如果指定 Try it »
no-close-quote 从内容中删除收盘报价,如果指定 Try it »
url( url ) 设置内容是某种类型的媒体(an image, a sound, a video, etc.) Try it »
initial 将此属性设置为默认值。 阅读关于初始
inherit 继承其父元素此属性。 阅读关于继承

例子

更多示例

如何添加项目符号的颜色<ul><ol>通过删除其默认子弹和补充,看起来像子弹HTML实体(&bull;)

ul {
    list-style: none; /* Remove list bullets */
    padding: 0;
    margin: 0;
}

li {
    padding-left: 16px;
}

li:before {
    content: "•"; /* Insert content that looks like bullets */
    padding-right: 8px;
    color: blue; /* Or a color you prefer */
}
试一试»

相关页面

CSS参考: :before伪元素

CSS参考: :伪元素之后