Menu
×
   ❮     
HTML CSS JAVASCRIPT SQL PYTHON JAVA PHP HOW TO W3.CSS C C++ C# BOOTSTRAP REACT MYSQL JQUERY EXCEL XML DJANGO NUMPY PANDAS NODEJS R TYPESCRIPT ANGULAR GIT POSTGRESQL MONGODB ASP AI GO KOTLIN SASS VUE DSA GEN AI SCIPY AWS CYBERSECURITY DATA SCIENCE
     ❯   

HTML <base> 标签


示例

为页面上的所有链接指定默认 URL 和默认目标

<head>
  <base href="https://w3schools.org.cn/" target="_blank">
</head>

<body>
<img src="images/stickman.gif" width="24" height="39" alt="Stickman">
<a href="tags/tag_base.asp">HTML base 标签</a>
</body>
尝试一下 »

定义和用法

<base> 标签指定文档中所有相对 URL 的基本 URL 和/或目标。

<base> 标签必须具有 href 或 target 属性,或者两者兼有。

文档中只能有一个 <base> 元素,并且它必须位于 <head> 元素内。


浏览器支持

元素
<base>

属性

属性 描述
href URL 指定页面中所有相对 URL 的基本 URL
target _blank
_parent
_self
_top
指定页面中所有超链接和表单的默认目标

全局属性和事件

<base> 标签还支持 HTML 中的全局属性.


事件属性

 该 <base> 标签不支持任何事件属性。


相关页面

HTML DOM 参考:Base 对象


默认 CSS 设置

无。


×

Contact Sales

If you want to use W3Schools services as an educational institution, team or enterprise, send us an e-mail:
[email protected]

Report Error

If you want to report an error, or if you want to make a suggestion, send us an e-mail:
[email protected]

W3Schools is optimized for learning and training. Examples might be simplified to improve reading and learning. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. While using W3Schools, you agree to have read and accepted our terms of use, cookie and privacy policy.

Copyright 1999-2024 by Refsnes Data. All Rights Reserved. W3Schools is Powered by W3.CSS.