如何使用CSS实现小三角形效果:
在众多的网页效果中，都有小三角形效果的应用，能够增加特定应用的美观度，下面就给出一段实例代码，里面介绍了两种实现小三角头效果的方式。代码如下:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="author" content="http://www.51texiao.cn/" />
<title>三种纯CSS实现三角形的方法</title>
<style type="text/css">
.message-box
{
position:relative;
float:left;
margin:80px 0 0 100px;
width:240px;
height:60px;
line-height:60px;
border:1px solid #000;
text-align:center;
color:#0C7823;
}
.triangle-border
{
position:absolute;
left:100px;
overflow:hidden;
width:0;
height:0;
border-width:10px;
border-style:none dashed solid dashed;
}
.tb-border
{
top:-10px;
border-color:#000 transparent #000 transparent;
}
.tb-background
{
top:-9px;
border-color:transparent transparent #fff transparent;
}
/*字符*/
.triangle-character
{
position:absolute;
left:100px;
overflow:hidden;
width:26px;
height:26px;
font:normal 26px "宋体";
}
.tc-background
{
top:-12px;
color:#FFF;
}
.tc-border
{
top:-13px;
color:#000;
}
</style>
</head>
<body>
<div class="message-box"> <span> border 属性实现</span>
<div class="triangle-border tb-border"></div>
<div class="triangle-border tb-background"></div>
</div>
<div class="message-box"> <span> ◆ 字符实现</span>
<div class="triangle-character tc-border">◆</div>
<div class="triangle-character tc-background">◆</div>
</div>
</body>
</html>