css：text-decoration给文字增加上划线、删除线、下划线

text-decoration: <text-decoration-line text-decoration-style text-decoration-color>

<style>
  .none {text-decoration: none}
  .underline {text-decoration: underline}
  .overline {text-decoration: overline}
  .line-through {text-decoration: line-through}
  .blink {text-decoration: blink}
  .inherit {text-decoration: inherit}
</style>
<p class="none">默认</p>
<p class="underline">下划线</p>
<p class="overline">上划线</p>
<p class="line-through">删除线</p>
<p class="blink">闪烁文本</p>
<p class="inherit">从父元素继承</p>

<style>
  .line-through-double-red {
      text-decoration: line-through double red;
  }
</style>
<p class="line-through-double-red">从父元素继承</p>