@media(max-width:700px){
 .header .nav-courses[open]{flex-basis:100%;width:100%;min-width:0}
 .header .nav-courses .courses-submenu{position:static;width:100%;max-width:100%;margin-top:8px;box-sizing:border-box}
 .header .nav-courses .courses-submenu a{min-height:48px;white-space:normal;overflow-wrap:anywhere}
}