ul.tree, ul.tree ul
    list-style-type: none
    background: url(@{StaticR img_vline_png}) repeat-y
    margin: 0
    padding: 0
ul.tree ul
    margin-left: 10px
ul.tree li
    margin: 0
    padding: 0 12px
    line-height: 20px
    background: url(@{StaticR img_node_png}) no-repeat
ul.tree li:last-child
    background: #fff url(@{StaticR img_lastnode_png}) no-repeat
div#messageThread > ul.tree > li:first-child
    background: #fff
a.message-toggle
    cursor: pointer