.row-wrap {
overflow: hidden;
}
.row1, .row2, .row3 {
padding: 10px;
margin-bottom: -1000px;
padding-bottom: 1000px;
}
.row1{
width: 120px;
background: #F2F2F2;
float: left;
}
.row2{
width: 300px;
background: #81C0F2;
color: #FFF;
float: left;
_margin-right: -6px; //fix ie6
}
.row3{
width: 150px;
background: #FF6600;
color: #FFF;
overflow: hidden;
zoom: 1; //触发haslayout
}

<div class="row-wrap">
<div class="row1">
<p>悉尼洲际...</p>
</div>
<div class="row2">
<p>酒店离悉尼海滨...</p>
</div>
<div class="row3">
<p>在砂岩商场...</p>
</div>
</div>