DIV+CSS布局一行两列问题（Repeater布局）

代码<div>
<asp:Repeater ID="rptAppReview" runat =server>
<ItemTemplate>
<div>
<div style="width:80px; height:70px; float :left;clear :both">
<img src="<%#Eval("ScreenshotUrl")%>" alt="" style="width:64px; height :64px" />
</div>
<div style="float:left">
<div style="height :20px"><%#Eval("Title")%></div>
<div style="height :20px">Release date:<%#Eval("PublishTime")%></div>
<div style="height:40px; overflow :hidden"><%#Eval("Content")%></div>
</div>
<div style="clear :both "></div> <!--清楚浮动-->
</div>
</ItemTemplate>
</asp:Repeater>

</div>