.track-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;outline:none;cursor:pointer;display:block;position:absolute;margin-top:-3px;z-index:2;width:1.5rem;height:1.5rem;top:calc(-50% - .25rem);margin-left:-1rem;background-color:#eee;border:1px solid #b5b5b5;touch-action:pan-x;border-radius:50%;transition:transform .3s ease-out,box-shadow .3s ease-out,background-color .3s ease}