#burger-container{width:30px;cursor:pointer;color:currentColor}#burger{width:100%;height:100%}#burger span{background:currentColor;display:block;width:30px;height:4px;margin-bottom:4px;transition:all .4s ease-in-out;position:relative}.dropdown.open span:first-child{transform:rotate(-45deg);top:12px}.dropdown.open span:nth-child(2),.dropdown.open span:nth-child(3){width:0;opacity:0}.dropdown.open span:nth-child(4){transform:rotate(45deg);top:-12px}