div.tree
{
    clear: both;
}

div.tree > div.tools 
{
    padding: 0 0 0 4px;
    clear: both;
    height: 32px;
    background-color: #4D4D4D;
    overflow: hidden;
}

div.tree > div.tools div
{
    float: left;
}

div.tree > div.content
{
    background-color: #D5DCDD;
    overflow: auto;
}