.submenu:before{content:url("data:image/svg+xml,%3csvg%20xmlns='http://www.w3.org/2000/svg'%20width='24'%20height='12'%20fill='none'%3e%3cpath%20fill='%23fff'%20d='m12%200%2011.258%2011.419H.742L12%200Z'/%3e%3c/svg%3e");position:absolute;top:8px;left:50%;transform:translate(-20px)}