var us_menu_items_count = document.getElementsByClassName('us_menu_item').length for(var i=0; i < us_menu_items_count; i++){ document.getElementsByClassName('us_menu_item')[i].style.display = "grid"; } var us_menu_items_count = document.getElementsByClassName('us_menu_item_inline').length for(var i=0; i < us_menu_items_count; i++){ document.getElementsByClassName('us_menu_item_inline')[i].style.display = "inline-block"; }