- 制作自己的导航条。
- HTML头部元素：
- <base> 定义了页面链接标签的默认链接地址
- <style> 定义了HTML文档的样式文件
- <link> 定义了一个文档和外部资源之间的关系
- 练习样式表：
- 行内样式表
- 内嵌样式表
- 外部样式表
- 分别练习定义三类选择器：
- HTML 选择器
- CLASS 类选择器
- ID 选择器
<!DOCTYPE html><html lang="en"><head> ???<meta charset="UTF-8"> ???<title>登陆页面</title> ???<base href="http://www.gzcc.cn/"target="_blank"> ???<link rel="stylesheet"type="text/css"href="123.css"> ???<style> ??????????h2{ text-align: center;margin-bottom:0;} ??????????#headertwo{background-color:#FF359A;} ??????????#contenttwo{background-color:#9D9D9D;height:200px;width:400px;float:left;} ??????????#footertwo{background-color:#FF5151;clear:both;text-align:center;} ??????????#wedang{width:400px;float:right} ??????????#school{width:400px;float:left} ???</style></head><body><img src="http://img3.redocn.com/tupian/20150312/haixinghezhenzhubeikeshiliangbeijing_3937174.jpg"width="100" height="20" alt="h" > ???<a href="">首页</a> ???<a href="">下载</a> ???<input type="text"name="search"> ???<input type="submit"value="搜索"> ???<a href="">登录</a> ???<a href="">注册</a></nav><h1>登陆页面</h1><h2>2017</h2><p></p><div> ???<p>注意认真阅读信息<span style="font-family: ‘‘, monospace; font-size: 25px;background-color:#750000">认真阅读</span></p></div><div ?id="container" style="width:400px " > ???<div id="header" style="background-color:green;"><h2 align="center" style="margin-bottom:0;">LOGIN</h2></div> ???<div id="content" style="background-color:#EEEEEE;height:150px;width:400px;float:left;"> ???????<form action=""> ???????????Username:<input type="text" name="user"placeholder="Username"><br> ???????????Password:<input type="password" name="password"placeholder="Password"> ???????????<br> ???????????<input type="radio"name="role"value="stu">student ???????????<input type="radio"name="role"value="tea">teacher ???????????<br> ???????????<input type="button" value="login"> ???????????<input type="button" value="cancel"> ???????</form> ???</div> ???<div id="footer" style="background-color:mediumpurple;clear:both;text-align:center;">版权 ? duym</div></div><div ?id="container" style="width:400px " > ???<div id="header" style="background-color:green;"><h2 align="center" style="margin-bottom:0;">SEARCH</h2></div> ???<div id="content" style="background-color:#EEEEEE;height:150px;width:400px;float:left;"> ???????<from> ???????????<select> ???????????????<option>选择</option> ???????????????<option>收藏</option> ???????????????<option>喜欢</option> ???????????</select> ???????</form><br> ?????相关查询： ?????<ul> ????????<li>教学资料查询</li> ?????????<li>考试查询</li> ?????</ul> ??????<ol> ????????<li>教学管理</li> ??????????<li>资源管理</li> ?????</ol> ???</div> ???<div id="footer" style="background-color:#C0C0C0;clear:both;text-align:center;">版权 ? duym</div></div><hr> <P>友情链接</P> ?<a href="http://www.gzcc.cn/">广州商学院<br> ?????<img src="http://img1.3lian.com/img013/v3/2/d/61.jpg" width="258" height="39" alt="gzcc.cn" ?></a></body></html>导航，头部，CSS基础
原文地址：http://www.cnblogs.com/095lqt/p/7683814.html