<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="author" content="http://www.softwhy.com/" />
<title>纯CSS实现气泡聊天框的方法</title>
<style type="text/css">
.message-box
{
position:relative;
width:200px;
height:40px;
line-height:40px;
border:1px solid #000;
text-align:center;
color:#fff;
border-radius:2px;
background-color:green;
}
.triangle-border
{
position:absolute;
overflow:hidden;
width:0;
height:0;
border-width:8px 0 8px 8px ;
border-style:dashed dashed dashed solid;
top:13px;
}
.tb-border
{
right:-8px;
border-color:transparent transparent transparent #000;
}
.tb-background
{
right:-7px;
border-color:transparent transparent transparent green;
}
</style>
</head>
<body>
<div class="message-box">
<span>气泡聊天框实现</span>
<div class="triangle-border tb-border"></div>
<div class="triangle-border tb-background"></div>
</div>
</body>
</html>
运行结果：
