03-HTML5标签-HTML5极速入门

酌酒入心 2021-05-03 08:37:29
html html5 标签 03-html5



HTML文档是由HTML标签组成的。

标签由 开始标签结束标签 组成,之间夹杂着标签内容。如下所示:

<div>潘高陪你学编程</div>

<div>开始标签</div>结束标签潘高陪你学编程 是标签内容。

当然了,有的极个别标签是没有 结束标签 的,比如:

<br />

大多数标签都是带有属性的,比如:

<a href="http://blog.pangao.vip">潘高陪你学编程</a>
  • 属性是描述于 开始标签 之中
  • 属性总是以名称/值对的形式出现,比如:key=”value”
  • 属性值应该始终被包括在引号内,
    双引号是最常用的。但在极少数情况下,比如属性值本身就含有双引号,那么必须使用单引号,比如:key=’潘高”陪你”学编程’
  • 属性和属性值对大小写不敏感,不过建议都使用小写

常见的属性有这么几种:


属性

描述

class

为html标签定义一个或多个类名(classname)(类名从样式文件引入)

id

定义元素的唯一id

style

规定元素的行内样式(inline style)







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