شابلون:Tree list/styles.css

/* Tree style lists */
.treeview ul {
    padding: 0;
    margin: 0;
}
.treeview li {
    padding: 0;
    margin: 0;
    list-style-type: none;
    list-style-image: none;
}
.treeview li li {
    background-image: url("//upload.wikimedia.org/wikipedia/commons/3/3d/Treeview-grey-line-flipped.png");
    background-repeat: no-repeat;
    background-position: right 0 top -2981px;
    /* @noflip */
    padding-right: 20px;
    text-indent: 0.3em;
}
.treeview li li.lastline {
    background-position: right 0 top -5971px
}
.treeview li.emptyline > ul {
    /* @noflip */
    margin-right: -1px;
}
.treeview li.emptyline > ul > li:first-child {
    background-position: right 0 top 9px
}