@media only screen and (max-width: 600px) {
.sub-menu .category{
    display:block;
}
.column-1{
    columns:1 !important;
}
    .main-heading{
        text-align: center;
        margin: 18px auto 36px;
        text-transform: uppercase;
    }
    .main-heading .sub-heading{
        font-size: 1rem;
        margin-top:8px;
    }
    .mobile-burger .icon{
        width: 40px;
        height: 40px;
        border: 1px solid #000;
    }
    .mobile-burger .icon:after{
        width: 40px;
        height: 40px;
    }
    .nav-bar{
        z-index: 999999;
        top: 0px;
        padding: 0px !important;
        position: fixed;
    }
    .nav-bar .nav-menu.bg-light{
        height: 100vh;
        background-color:#363636 !important;
    }
    .nav-bar .nav-menu.bg-light ul li a,.nav-bar .nav-menu.bg-light ul li{
        color:#fff !important;
        font-size:1.5rem !important;
    }
    .nav-menu ul{
        overflow:auto;
        height:calc(100vh - 126px);
    }
    
    .nav-bar .nav-menu.bg-light .mobil-menu-header{
        background-color:#fff !important;
    }
    .nav-bar.d-none.active{
        display: block !important;
    }
    
    .sub-menu-container{
        position: fixed;
        width: 100%;
        z-index:999999;
        top: 0;
        right: 0;
        height: 100vh;
        overflow: auto;
        display: none;
        margin:0px;
        
    }
    .sub-menu-container.active{
        display: block;
    }
    .sub-menu-container > *{
        padding: 0;
    }
    
    .sub-menu-container .sub-menu-content .category h5 a,.sub-menu-container .sub-menu-content .category h5 a:link,.sub-menu-container .sub-menu-content .category h5 a:visited,.sub-menu-container .sub-menu-content ul li a{
        font-size:1.5rem;
    }
    .sub-menu-container .sub-menu-content ul{
        list-style:none;
        padding:0px;
        margin:0px;
    }
    .sub-menu-container .sub-menu-content ul li{
        padding: 15px 0px;
    }
        
    .sub-menu-container .sub-menu-content ul li a,.sub-menu-container .sub-menu-content ul li a:link,.sub-menu-container .sub-menu-content ul li a:visited{
        color:#000;
    }
     .sub-menu-container .sub-menu-content .category h5{
        padding: 15px 0px;
    }

    .category-heading{
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 20px;
        padding: 0;
    }
    #courses .category h6{
        padding: 20px 8px;
        border-bottom: 1px solid #252525;
    }
    #courses .category ul,#courses .category h6 a:after{
        display: none;
    }
    #courses .category.awarding ul{
        display: block;
        list-style: none;
        padding: 0px;
    }
    #courses .category.awarding ul li,#courses .category.awarding h6{
        padding: 20px 8px;
        border-bottom: 1px solid #fff;
    }
    .banners .searchbar {
        position: initial; 
    }
    .banners .searchbar > .row {
        padding: 16px 7px;
    }   
    .banners img{
        width: auto;
        height: 100%;
    }
    .banners{
        width: auto;
        height: 411px;
    }
    
    .banners .overlay{
        left: 0px !important;
    }
    
}