.AITSitemapsitemap.aitsitemap-theme-tree ul {
    border-left: 0;
    padding-left: 24px;
    margin-left: 0;
}

.AITSitemapsitemap.aitsitemap-theme-tree li::before {
    content: "";
    position: absolute;
    left: -14px;
    top: 0;
    bottom: -10px;
    border-left: 2px solid rgba(0,0,0,.16);
}

.AITSitemapsitemap.aitsitemap-theme-tree li::after {
    content: "";
    position: absolute;
    left: -14px;
    top: 14px;
    width: 12px;
    border-top: 2px solid rgba(0,0,0,.16);
}

.AITSitemapsitemap.aitsitemap-theme-tree > li::before,
.AITSitemapsitemap.aitsitemap-theme-tree > li::after {
    display: none;
}

.AITSitemapsitemap.aitsitemap-theme-tree li:last-child::before {
    bottom: auto;
    height: 14px;
}