文本修饰 | text-decoration

/* Keyword values */
text-decoration: none;                /* No text decoration */
text-decoration: underline red;       /* Red underlining */
text-decoration: underline wavy red;  /* Red wavy underlining */

/* Global values */
text-decoration: inherit;
text-decoration: initial;
text-decoration: unset;

Applies to all elements. It also applies to [`::first-letter`](::first-letter) and [`::first-line`](::first-line).   [Inherited](inheritance) no   Media visual   [Computed value](computed_value) as each of the properties of the shorthand:

动画类型作为简写的每个属性：

出现在规则语法中的规范顺序 

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

.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;
}

<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 with 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>