Simply use CSS to achieve dynamic prompt information effect. The code is as follows:
CSS code part
a.info { position:relative; z-index:0; background-color:#ccc; color:#000; text-decoration:none } a.info:hover { z-index:1; background-color:#ff0 } a.info span { display: none } a.info:hover span { display:block; position:absolute; top:12px; left:2px; width:160px; border:1px solid #0cf; background-color:#cff; color:#000; text-align: center }
Two methods called in the body area:
//方法一 <a class="info" href="javascript:;"><b>需要添加注释的文本</b><span>提示信息</span></a>
//方法二 <a class="info" href="javascript:;"><img src="需要添加注释的图片"><span>提示信息</span></a>
<style> body { font:verdena; font-size:14px; color:#000 } h1{ font:verdena; font-size:22px; color:#000 } h2{ font:verdena; font-size:15px; color:#000; text-align:left } div#main { margin:30 } /*关键代码开始*/ a.info { position:relative; z-index:0; background-color:#ccc; color:#000; text-decoration:none } a.info:hover { z-index:1; background-color:#ff0 } a.info span { display: none } a.info:hover span { display:block; position:absolute; top:25px; left:60px; width:130px; border:1px solid #0cf; background-color:#cff; color:#000; text-align: center } /*关键代码结束*/ </style> <body> <div id="main"> <h1>单纯使用CSS实现动态提示信息</h1> <h1>不用js可以实现信息提示效果?!(title和alt除外)</h1> <h2>By [51js.com]zdzhuo</h2> <h2>Ie5.5+, Opera7.0, Netscap7.0, Mozilla1.4 都能正常使用</h2> <a class="info" href="javascript:;"><b>这是提示信息</b><span>www.51js.com</span></a>不需要js就能实现的提示信息<a class="info" href="javascript:;"><b>单纯使用CSS实现提示信息</b><span>一个非常简便的方法 原理也浅显易懂</span></a> <a class="info" href="javascript:;"><img src="http://nb001722.sosoo.net/51js.gif" border="0"><span>这是我在51js.com的专用头像</span></a> </div> </body