<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 None, it is an empty element.
• Tag omission It must have start tag, but must not have an end tag.
• Permitted parent elements Any element that accepts flow content.
• DOM interface HTMLHRElement

特性

This element includes the global attributes.

align 

Sets the alignment of the rule on the page. If no value is specified, the default value is left.

color

Sets the color of the rule through color name or hexadecimal value.

noshade 

Sets the rule to have no shading.

size 

Sets the height, in pixels, of the rule.

width 

Sets the length of the rule on the page through a pixel or percentage value.

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>

Above HTML will output:

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.

Specifications

浏览器兼容性

相关内容

• <p>