.button-top{align-items:center;border-radius:50%;cursor:pointer;display:flex;height:50px;justify-content:center;margin-top:15px;position:absolute;right:25px;transition-duration:.3s;transition-property:background,border,color;width:50px;z-index:10}@media (max-width:1200px){.button-top{left:50%;margin-left:-25px}}