text-decoration - CSS（层叠样式表） 编辑

简介

text-decoration 这个 CSS 属性是用于设置文本的修饰线外观的（下划线、上划线、贯穿线/删除线  或 闪烁）它是 text-decoration-line, text-decoration-color, text-decoration-style, 和新出现的 text-decoration-thickness 属性的缩写。

文本修饰属性会延伸到子元素。这意味着如果祖先元素指定了文本修饰属性，子元素则不能将其删除。例如，在如下标记中<p>This text has <em>some emphasized words</em> in it.</p>，应用样式p { text-decoration: underline } 会对整个段落添加下划线，此时再添加样式 em { text-decoration: none } 则不会引起任何改变，整个段落仍然有下划线修饰。然而，新加样式 em { text-decoration: overline } 则会在<em>标记的文字上再添加上这种overline样式。

语法

text-decoration属性是一种简写属性，并且可以使用普通属性三个值中的任何一个。普通属性如下：text-decoration-line，text-decoration-color和text-decoration-style

值

text-decoration-line

文本修饰的位置, 如下划线underline，删除线line-through

text-decoration-color

文本修饰的颜色

text-decoration-style

文本修饰的样式, 如波浪线wavy实线solid虚线dashed

text-decoration-thickness

文本修饰线的粗细

语法形式

<'text-decoration-line'> || <'text-decoration-style'> || <'text-decoration-color'> || <'text-decoration-thickness'>

示例

<p class="under">This text has a line underneath it.</p>
<p class="over">This text has a line over it.</p>
<p class="line">This text has a line going through it.</p>
<p>This <a class="plain" href="#">link will not be underlined</a>,
    as links generally are by default. Be careful when removing
    the text decoration on anchors since users often depend on
    the underline to denote hyperlinks.</p>
<p class="underover">This text has lines above <em>and</em> below it.</p>
<p class="blink">This text might blink for you,
    depending on the browser you use.</p>

.under {
  text-decoration: underline red;
}

.over {
  text-decoration: wavy overline lime;
}

.line {
  text-decoration: line-through;
}

.plain {
  text-decoration: none;
}

.underover {
  text-decoration: dashed underline overline;
}

.blink {
  text-decoration: blink;
}

结果

规范

浏览器兼容性

BCD tables only load in the browser

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

参见

• The individual text-decoration properties are text-decoration-line, text-decoration-color, and text-decoration-style.
• The list-style attribute controls the appearance of items in HTML <ol> and <ul> lists.