.dashboard .left_menu_sidebar {
    width: 280px;
    position: fixed;
    left: 0;
    top: 60px;
    height: calc(100dvh - 60px);
    padding: 15px;
    overflow: hidden;
    overflow-y: auto;
    background-color: #333;
}
.left_menu_sidebar ul {
    padding: 0;
    margin: 0;
    list-style-type: none;
}
.left_menu_sidebar ul li {
    margin-top: 3px;
}
.left_menu_sidebar ul li a {
    color: #fff !important;
    padding: 4px 7px;
    display: block;
    text-decoration: none;
    border-radius: 4px;
    cursor: pointer;
}
.left_menu_sidebar ul li a:hover {
    background-color: #222;
}
.submenu_toggle {
    position: relative;
}
.submenu_toggle::after {
    content: "";
    position: absolute;
    right: 2px;
    width: 32px;
    height: 32px;
    background-image: url("../images/drop-down-arrow.svg");
    background-size: 30px;
    top: 0;
    transform: rotate(90deg);
}
.submenu_toggle::after, 
.multiple_menu_main.show .submenu_toggle::after {
    transition: transform 0.3s ease-in-out;
}
.multiple_menu_main.show .submenu_toggle::after {
    transform: rotate(180deg);
}
.multiple_menu_main .submenu {
    max-height: 0;
    overflow: hidden;
    padding-left: 20px;
}
.multiple_menu_main.show .submenu, 
.multiple_menu_main .submenu {
    transition: max-height 0.3s ease-in-out;
}
.multiple_menu_main.show .submenu {
    max-height: calc(100dvh - 60px);
}