@media (min-width: 757px) {
.col-sm-4.col-12.mb-0.mb-sm-4 {
    flex: 0 0 25%;
    max-width: 25%;
}
}

@media (max-width: 757px) {
.col-sm-4.col-12.mb-0.mb-sm-4 {
    flex: 0 0 50%;
    max-width: 100%;
}
}

#main_tree5 ul .title:after {
    background-color: white;
}