<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>table</title>
<style type="text/css">
* {
margin:0;
padding:0;
}
.table {
width:400px;
margin:50px auto 0;
border-collapse:collapse;
display:table;
}
.td {
display:table-cell;
line-height:20px;
vertical-align:top;
border:1px solid #ccc;
position:relative;
vertical-align:middle;
text-align:center;
}
.tip {
width:50px;
height:50px;
position:absolute;
left:100px;
top:50px;
background:red
}
.tr {
display:table-row;
}
</style>
</head>
<body>
<div class="table">
<div class="tr">
<div class="td">
<p>a</p>
<p>d</p>
<p>d</p>
<div class="tip"></div>
</div>
<div class="td">a</div>
<div class="td">a</div>
</div>
<div class="tr">
<div class="td">
<p>a</p>
<p>a</p>
<p>a</p>
</div>
<div class="td">a</div>
<div class="td">a</div>
</div>
<div class="tr">
<div class="td">
<p>a</p>
<p>g</p>
<p>j</p>
</div>
<div class="td">a</div>
<div class="td">a</div>
</div>
</div>
</body>
</html>
实际展示效果，火狐，谷歌以及ie8以上浏览器上，ie67我不考虑了
