<hr>

HTML <hr> 元素表示段落级元素之间的主题转换（例如，一个故事中的场景的改变，或一个章节的主题的改变）。在HTML的早期版本中，它是一个水平线。现在它仍能在可视化浏览器中表现为水平线，但目前被定义为语义上的，而不是表现层面上。

• Content categories Flow content.
• Permitted content无, 是一个 空元素.
• Tag omission必须有开始标签, 不能有结束标签。
• Permitted parent elements 所有接受flow content的元素。
• DOM interface HTMLHRElement

特性

该元素包含全局属性

align 

设置对齐方式. 如果没有值, 默认值为 left。

color

使用颜色名或十六进制设置颜色。

noshade 

去除阴影。

size 

使用像素设置高度。

width 

使用像素或者百分比设置宽度。

示例

<p>This is the first paragraph of text. This is the first paragraph of text.
  This is the first paragraph of text. This is the first paragraph of text.</p>

<hr>

<p>This is second paragraph of text. This is second paragraph of text.
  This is second paragraph of text. This is second paragraph of text.</p>

示例运行结果:

This is the first paragraph of text. This is the first paragraph of text. This is the first paragraph of text. This is the first paragraph of text.

This is second paragraph of text. This is second paragraph of text. This is second paragraph of text. This is second paragraph of text.

规范

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

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