/**handles:optimizer-back-to-top-style**/
#back-to-top{display:flex;align-items:center;justify-content:center;width:50px;height:50px;text-align:center;position:fixed;transition:background-color .3s,opacity .5s,visibility .5s;opacity:0;visibility:hidden;z-index:1000}#back-to-top:hover{cursor:pointer}#back-to-top.show{opacity:1;visibility:visible}