.left-nav-search-container {
    border:0px solid orange;
}

.left-nav-separator {
    border:0px solid green;
}

.left-nav-menu-container {
    border: 0px solid red;
    left: 0px;
    top: 0px;
    width: calc(100% - 2px);
    height: 100%;
    cursor:pointer;
    overflow-y:auto;
    padding-right:13px;                                                                                         // Make some room for the scrollbar.
}