<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>div带箭头提示框实例</title>
<style type="text/css">
.info {
margin-top: 50px;
position:relative;
200px;
height:50px;
line-height:50px;
background:#F6F1B3;
box-shadow:1px 2px 3px #E9D985;
border:1px solid #DACE7C;
border-radius:4px;
text-align:center;
color:red;
}
.nav {
position:absolute;
left:30px;
overflow:hidden;
0;
height:0;
border-10px;
border-style:solid dashed dashed dashed;
}
.nav-border {
top:-20px;
border-color:transparent transparent #DACE7C transparent;
}
.nav-background {
top:-19px;
border-color:transparent transparent #F6F1B3 transparent;
}
.nav2 {
position:absolute;
top:-8px;
left:30px;
overflow:hidden;
13px;
height:13px;
background:#F6F1B3;
border-left:1px solid #DACE7C;
border-top:1px solid #DACE7C;
-webkit-transform:rotate(45deg);
-moz-transform:rotate(45deg);
-o-transform:rotate(45deg);
transform:rotate(45deg);
}
.nav3 {
position:absolute;
left:30px;
overflow:hidden;
24px;
height:24px;
font:normal 24px "微软雅黑";
}
.nav-border3 {
top:-17px;
color:#DACE7C;
}
.nav-background3 {
top:-16px;
color:#F6F1B3;
}
</style>
</head>
<body>
<div class="info">
<span>通过border</span>
<div class="nav nav-border"></div>
<div class="nav nav-background"></div>
</div>
<div class="info">
<span>通过transform</span>
<div class="nav2"></div>
</div>
<div class="info">
<span>通过♦</span>
<div class="nav3 nav-border3">♦</div>
<div class="nav3 nav-background3">♦</div>
</div>
</body>
</html> 
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