Here is some code that I'm using:
.images-view .thumb img
{
height: 35px;
width: 35px;
}
.images-view .thumb-radio-wrap
{
float: left;
width: 40px;
margin: 4px;
margin-right: 0;
padding: 2px;
text-align: center;
}
.images-view .thumb-wrap
{
width: 36px;
margin: 0px;
margin-right: 0;
padding: 4px;
text-align: center;
cursor: pointer;
}
.images-view .radio-wrap
{
width: 36px;
margin: 0px;
margin-right: 0;
padding: 4px;
text-align: center;
}
.images-view .thumb-wrap span
{
display: block;
overflow: hidden;
text-align: center;
}
.images-view .x-view-over
{
border: 1px solid #dddddd;
padding: 4px;
cursor: hand;
}
.images-view .x-view-selected
{
border: 1px solid #22bb22;
background: #efefef;
padding: 4px;
}
.images-view .x-view-selected .thumb
{
background: transparent;
}
.images-view .loading-indicator
{
font-size: 11px;
background-repeat: no-repeat;
background-position: left;
padding-left: 20px;
margin: 10px;
}
.x-editable
{
width: 40px;
height: 30px;
}
.Delete :hover
{
color: Red;
}
.Delete
{
margin: 0px !important;
}
.images-view .x-panel-body
{
background: white;
font: 11px Arial, Helvetica, sans-serif;
}
<ext:DataView ID="dvViewAttachments" runat="server" StoreID="storeAttachments" MultiSelect="true"
OverClass="x-view-over" ItemSelector="div.thumb-wrap" AllowDomMove="true" meta:resourcekey="dvViewAttachmentsResource1">
<Template ID="Template4" runat="server">
<Html>
<tpl for=".">
<div class="thumb-radio-wrap">
<div class="thumb-wrap" id="{Icon}" width="30%" title="{name}" >
<div class="Delete" onclick="DeAttachCapturedDocument('{filepath}', '{documentid}' , '{objectid}','NOTCustomFieldDeAttachment','')"><span ><font size="3" face="Matura MT Script Capitals">x</font></span></div>
<div class="thumb" runat="server" onclick="ViewCapturedDocument('{filepath}', '{name}' , '{documentid}', '{documenttype}', '{objectid}', '{categoryid}', '{typeid}')"><img src="{url}" title="{name}"></div>
<span class="x-editable" onclick="ViewCapturedDocument('{filepath}', '{name}' , '{documentid}', '{documenttype}', '{objectid}', '{categoryid}', '{typeid}')">{shortName}</span>
</div>
<div class="radio-wrap">
<input type="radio" name="select-attachment" />
</div>
</div>
</tpl>
<div class="x-clear"></div>
</Html>
</Template>
<PrepareData Fn="prepareData" />
</ext:DataView>