.menu_about a{
    color: black;
}

.root-item-selected {
    opacity: .4
}
.menu_mobile li{
border: 1px #ddd solid;
padding: 7px 12px;
border-radius: 10px
}

.menu_mobile a{
color: black;
}

.menu_mobile  li.active{
background: #ddd;
}