导航,头部,CSS基础
- 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>Title</title> <link rel="stylesheet" href="dao.css" type="text/css"> <base target="_blank" /> </head> <body > <nav class="nav"> <ul> <li><a href=""><img src="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1508251463981&di=1d8e9eccad48cc4154895846c19850d6&imgtype=0&src=http%3A%2F%2Fa0.att.hudong.com%2F38%2F40%2F01300542658130140593408122952_s.png">首页</a></li> <li><a href=""><img src="https://timgsa.baidu.com/timg?image&quality=80&size=b10000_10000&sec=1508241260&di=b5536e6833e2da3f92baf4e3770ddcc7&src=http://www.yooyoo360.com/photo/2009-1-1/20090112122027672.jpg">下载</a></li> <li><a href=""><img src="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1508250905764&di=f9604efd81d162d59c11a29e31757e03&imgtype=0&src=http%3A%2F%2Fimg.25pp.com%2Fuploadfile%2Fsoft%2Fimages%2F2012%2F0424%2F20120424041554637.jpg">新闻</a></li> <li><a href=""><img src="https://timgsa.baidu.com/timg?image&quality=80&size=b10000_10000&sec=1508241071&di=8a1a78dc3c3fbdde46b85c88b9392486&src=http://pica.nipic.com/2007-10-12/200710128331170_2.jpg">登录</a></li> <li><a href=""><img src="https://ss2.bdstatic.com/70cFvnSh_Q1YnxGkpoWK1HF6hhy/it/u=3605377444,2155870739&fm=27&gp=0.jpg">短消息</a></li> <button style="float: right;margin: 5px auto;border-radius: 5px;height: 30px" type="submit">搜索</button> <input style="float: right;margin: 5px auto;border-radius: 8px;width: 200px;height: 20px;" type="text" name="search"PLACEHOLDER="输入要搜索的内容"> </ul> </nav> </div> </body> </html>
#header{ background-color:darkslategray; text-align:center; font-family: "华文彩云"; color:white; font-size: 50px; } #content{ background-color: blanchedalmond; width: 400px; float: left; line-height: 40px; } .nav ul{ width: 1000px; border: 1px solid hotpink; margin: 50px auto 0px auto; } .nav ul li{ float: left; } .nav ul li a{ width: 80px; height: 28px; line-height: 28px; background-color: hotpink; color: aliceblue; margin: 5px 35px; font-size: 12px; display: block; text-align: center; text-decoration: none; } .nav ul li a:hover{ width: 78px; height: 26px; line-height: 28px; border: 1px solid hotpink; background: #FFF; } img{ height: 28px; width:28px; float: left }
鼠标经过导航时的效果: