.wm-menu-toggle{display:none!important}.wm-header .wm-nav-host,.wm-header .wm-market-host{display:block!important}.wm-header .wm-main-row{flex-wrap:wrap}.wm-market-label{display:none!important}.wm-submenu-toggle{display:none!important}.wm-header .wm-category-scroll{display:none!important}.wm-header #wm-primary-navigation{display:block}.wm-primary-menu{width:100%;flex-wrap:wrap;align-items:flex-start}.wm-primary-menu>li{flex:1 1 240px;min-width:0;max-width:100%;flex-wrap:wrap}.wm-primary-menu .sub-menu{display:block!important;position:static!important;flex-basis:100%;width:100%;max-height:40vh;overflow:auto}

Simple Solution