1. 框架标签
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>框架标签</title>
</head>
<body>
<!-- 利用iframe嵌入一个普通网页 -->
<iframe src="https://www.toutiao.com" width="900" height="300" frameborder="0"></iframe>
<!-- 利用iframe嵌入一个广告网页 -->
<iframe width="300" height="250" src="https://pos.baidu.com/xchm?conwid=300&conhei=250&rdid=5841072&dc=3&di=u5841072&s1=2619619085&s2=735691552&dri=1&dis=0&dai=24&ps=2557x1059&enu=encoding&exps=110283,110277,110273,110261,110254,110011&ant=0&psi=ec321235870ce038&dcb=___adblockplus_&dtm=HTML_POST&dvi=0.0&dci=-1&dpt=none&tpr=1675046784135&ti=%E7%BD%91%E6%98%93%E6%96%B0%E9%97%BB&ari=2&ver=0129&dbv=2&drs=4&pcs=1519x763&pss=1519x11348&cfv=0&cpl=5&chi=2&cce=true&cec=UTF-8&tlm=1675046701&prot=2&rw=763<u=https%3A%2F%2Fnews.163.com%2F&ecd=1&fpt=TSqlzRKQUoc9+DbwoBg+b3cB10ATMyxUj3wjiV0jemwIVBo7z2ECouhUiVZq9IXN5cuofEzg/QDLSl5smhScYpTN+HQc3+QhnKv3H8MhzCYvAEcKDXAQAxK1FTXUdEd7J70MlzGWjb5DY6rlVbwmYbud1lCLmHxH5enja3K/dBHQzpLvsZCQqnanh/vBkkBTauX5z2jCEQvudlFgU1sHGA2kmnPoF0fHQA756T+sNKjATCqWL62CuVSrPm52Es2xtwueTF6sREr61IdA4wcZwEObe67hCIHPeGk5UX48Fw06RMTjgGDr6oQhyEpAeW3u9Gi0qHTYg8wBI1yoBmmwhuh0MpxtrJcLm0tGY4ODYGriOVhYwo/vU1cGOPrxvZG39yCve9+xcc7sVW4DBkCezA==|2UoaY428DIL/VGPLaRon4l5i5WbAevIWwjj0W0sj4LU=|10|d42cad75cac5486feb0f88674f9a220a&dft=0&uc=1536x834&pis=-1x-1&sr=1536x864&tcn=1675046784&qn=75c4f389da0f062c&ft=1" frameborder="0"></iframe>
<!-- 利用iframe嵌入其他内容 -->
<iframe src="./resource/如何一夜暴富.pdf" frameborder="0"></iframe>
</body>
</html>
例2：
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>框架标签</title>
</head>
<body>
<!-- 与超链接的target属性配合使用 -->
<a href="https://www.toutiao.com" target="container">点我看新闻</a>
<a href="https://www.taobao.com" target="container">点我看淘宝</a><br>
<!-- 与表单的target属性配合使用 -->
<form action="https://so.toutiao.com/search" target="container">
<input type="text" name="keyword">
<input type="submit" value="搜索">
</form>
<iframe name="container" frameborder="0" width="900" height="300"></iframe>
</body>
</html>
2. HTML实体
3. HTML全局属性
4. meta元信息
1、配置字符编码
<meta charset="utf-8">
2、针对IE浏览器的兼容性配置
<meta http-equiv="X-UA-Compatible" content="IE=edge">
3、针对移动端的配置
<meta name="viewport" content="width=device-width, initial-scale=1.0">
4、配置网页关键字
<meta name="keywords" content="8-12个以英文逗号隔开的单词/词语">
5、配置网页描述信息
<meta name="description" content="80字以内的一段话，与网站内容相关">
6、针对搜索引擎爬虫配置
<meta name="robots" content="此处可选值见下表">
7、配置网页作者
<meta name="author" content="tony">
8、配置网页生成工具
<meta name="generator" content="Visual Studio Code">
9、配置定义网页版权信息
<meta name="copyright" content="2023-2027©版权所有">
10、配置网页自动刷新
<meta http-equiv="refresh" content="10;url=http://www.baidu.com">