效果图：（点击好现实按钮效果）
HTML菜单栏布局源代码
<!doctype html><html><head><meta charset="utf-8"><title>无标题文档</title></head><body><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="#">首页</a><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="#">心情日记</a><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="#">学习心得</a><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="#">工作笔记</a><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="#">生活琐碎</a><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="#">其他</a></body></html>
后加CSS样式
<style type="text/css"> a{ font-family:Arial; font-size:.9em; text-align:center; margin:3px; } a:hover{ /* 边鼠标经过的效果 */ color:#821818; padding:5px 8px 3px 12px; /* 改变文字位置 */ background-color:#e2c4c9; border-top:1px solid #717171; border-left:1px solid #717171; border-bottom:1px solid #EEE; border-right:1px solid #EEE; } a:link, a:visited{ /* 边鼠标点击后效果 */ color:#A62020; padding:4px 10px 4px 10px; background-color:#ecd8db; text-decoration:none; border-top:1px solid #EEE; /* 边框实现阴影效果 */ border-left:1px solid #EEE; border-bottom:1px solid #717171; border-right:1px solid #717171; } </style>
其中， 鼠标经过超链接的时候 设置的样式 。padding属性意在通过内边距微调来改变文字位置
padding:5px 8px 3px 12px;
通过设置边框。将边框上边和左边、下边和右边分别设置不同的颜色。制造阴影效果
border-top:1px solid #717171; border-left:1px solid #717171; border-bottom:1px solid #EEE; border-right:1px solid #EEE;
如图 为鼠标经过的效果 边框颜色与上图相反。文字位置也稍作改动
同理 也可以设置鼠标点击后的效果，此时边框颜色恰恰相反