.m-back-to-top{position:fixed;bottom:20px;right:30px;z-index:99}.m-back-to-top__button{display:none;position:relative;border:none;outline:0;background-color:#fff;background-image:url(../svg/chevron-up--blue-stone.svg);background-repeat:no-repeat;background-size:30px;background-position:center 15px;box-shadow:0 5px 10px #858fa1;cursor:pointer;height:48px;width:48px;border-radius:50%}.m-back-to-top__button:focus .m-back-to-top__tooltip,.m-back-to-top__button:hover .m-back-to-top__tooltip{visibility:visible;transition-delay:.3s}.m-back-to-top__tooltip{visibility:hidden;padding:8px;background-color:#fff;box-shadow:0 5px 10px #858fa1;color:#005a70;text-align:center;border-radius:4px;white-space:nowrap;position:absolute;z-index:1;top:8px;font-weight:700;left:-112px;transition-property:visibility;transition-delay:0s}