纯CSS实现气泡框

效果图如下：
气泡框图片
源码：
<!DOCTYPE html public "-//w3c//dtd html 4.01 transitional//en"
"http://www.w3c.org/tr/html4/loose.dtd">
<html>
<head>
	<meta charset="utf-8">
	<title></title>
	<style type="text/css">
	p{color: #fff;}
	.test{
		 300px;
		padding: 30px 20px;
		margin: 60px;
		background: #ce5010;
		position: relative;
		border-radius: 10px;
	}
	.test span{
		 0;
		height: 0;
		font-size: 0;
		overflow: hidden;
		position: absolute;
	}
	.test span.bot{
		border- 20px;
		border-style: solid;
		border-color: transparent #ce5010 #ce5010 transparent;
		left: -40px;
		top: 40px;
	}
	.test span.top{
		border- 10px 20px;
		border-style:  solid;
		border-color: transparent #fff #fff transparent;
		left: -40px;
		top: 60px;
	}
	.test .orgBotCor{
		color: #333;
		font-size: 60px;
		position: absolute;
		line-height: 60px;
		top: -30px;
		color: #ce5010;
	}
	.test.newBG span.bot2{
		border- 20px;
		border-style: solid dashed dashed; /*这里用dashed是为了解决防止IE6下的bug， 如果是solid，无法显示透明，具体原因不明*/
		border-color: #ce5010 transparent transparent;
		bottom: -40px;
	}
	.test.newBG span.top2{
		border- 20px;
		border-style: solid dashed dashed;
		border-color: #fff transparent transparent;
		bottom: -33px;
	}
	.newBG{
		background-color: #fff;
		border: #ce5010 5px solid;
		color: #ce5010;
	}
	.orangeColor{
		color: #ce5010;
	}
	</style>
</head>

<body>
	<div class="test">
		<span class="bot"></span>
		<span class="top"></span>
		<p>CSS"边框法"实现气泡对话框效果，需要两个辅助span</p>
	</div>
	
	<div class="test">
		<b class="orgBotCor">◆</b>
		<p>CSS"符号法"实现气泡对话框效果，需要一个<b></p>
	</div>

	<div class="test newBG">
		<span class="bot2"></span>
		<span class="top2"></span>
		<p class="orangeColor">CSS"边框法"实现气泡对话框效果，需要两个<span></p>
	</div>
</body>

<html>