dropdown

(function() {

            var sbTrigger = $('.searchbox-btn-mobile'),
                sbItem = $('#search_mini_form'),
                sbActive = 'is-active',
                sbParent = '.searchbox';
               sbTrigger.each(function(e){
                $(this).click(function() {
                       sbItem.eq(e).toggle();
                       sbTrigger.toggleClass(sbActive);
                   });
                });
                   $(document).on('click', function(e) {
                       if (!$(e.target).closest(sbParent).length) {
                           sbItem.hide();
                            sbTrigger.removeClass(sbActive);
                       }
                       e.stopPropagation();
                   });
        })();