jQuery(function($){ $('#menu-open').click(function() { $('.section-transform').toggleClass('section-transform-active'); }); $('.menu-item-click').click(function() { $('.section-transform').removeClass('section-transform-active'); }); }); .section-transform{ cursor: pointer; } .section-transform-active { height: 100% !important; width: 100% !important; z-index: 99999 !important; background-color: #FFFFFF !important; } .section-transform { -webkit-transition: all 0.5s ease !important; -moz-transition: all 0.5s ease !important; -o-transition: all 0.5s ease !important; -ms-transition: all 0.5s ease !important; transition: all 0.5s ease !important; }