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<ul id="tree">
<li>Item 1
<ul>
<li>Subitem 1</li>
<li>Subitem 2</li>
</ul>
</li>
<li>Item 2</li>
<li>Item 3</li>
</ul>
<style>
/* style the tree view */
#tree {
list-style: none;
padding: 0;
margin: 0;
}
#tree li {
margin: 0;
padding: 0 12px;
line-height: 21px;
background: url("images/tree-view-line.png") 0 0 no-repeat;
}
#tree li ul {
margin: 0 0 0 15px;
padding: 0;
}
</style>