body { background:#333333;} #winpop { width:200px; height:0px; position:absolute; right:0; bottom:0; border:1px solid #999999; margin:0; padding:1px; overflow:hidden;display:none; background:#FFFFFF} #winpop .title { width:100%; height:20px; line-height:20px; background:#FFCC00; font-weight:bold; text-align:center; font-size:12px;} #winpop .con { width:100%; height:80px; line-height:80px; font-weight:bold; font-size:12px; color:#FF0000; text-decoration:underline; text-align:center} #silu { font-size:13px; color:#999999; position:absolute; right:0;bottom:0px; text-align:right; text-decoration:underline; line-height:22px;} .close { position:absolute; right:4px; top:-1px; color:#FFFFFF; cursor:pointer} 测试按钮 您有新的消息X [Ctrl+A 全选 注:引入外部Js需再刷新一下页面才能执行]