上边效果与理想的有误差，代码布不上去，下边是源代码，另行保存后查看真正效果，下图是真正效果，区别在三角处，里面颜色
<!DOCTYPE html>
<html
lang="en-US">
<head>
<meta http-equiv="Content-Type"
content="text/html; charset=utf-8"
/>
<title></title>
<style>
.depth_2 { margin-left:
29px; margin-top: 18px; border: 1px solid #e3e3e3; background: #fffeee; padding:
10px 6px 8px 10px; position: relative; zoom: 1; }
.depth_2 .triangle {
border-color: transparent; border-style: dashed dashed solid dashed;
border-width: 0 6px 6px 6px; border-bottom-color: #e3e3e3; display: block;
width: 0; height: 0; line-height: 0; position: absolute; top: -6px; left: 35px;
}
.depth_2 .trianglee { width: 0; height: 0; line-height: 0; position:
absolute; top: 2px; left: -5px; border-color: transparent; border-style: dashed
dashed solid dashed; border-width: 0 5px 5px 5px; border-bottom-color: #fffeee;
display: block; }
</style>
</head>
<body>
<div
class="depth_2">
<div class="triangle"><span
class="trianglee"></span> </div>
<p
class="comment_info">
<time
datetime="2013-09-18T10:07:07+00:00" class="entry_date">2010-07-05
19:57:28</time>
博主 回复 <a class="comment_author"
title="用户昵称" href="#">用户昵称</a></p>
<p
class="comment_cont">在秋日真的有轻柔吧。</p>
</div>
</body>
</html>