Thread DIVs

<div style="width: (your width)px; height: 100%; padding: 10px; border: 2px solid(or dashed or dotted) #(your colour); border-radius: 10px; background: url('IMG URL');">
(This is the main div part, I usually put big decor images here)
<div style="width: (I go about 20px smaller than the last div)px; height: 100%; padding: 10px; border: 1px solid #(your colour); border-radius: 0px; background: #(your colour);">
(Actual thread content)
</div>
</div>