#os-goup{position:fixed;bottom:40px;left:50%;width:60px;height:60px;display:flex;background:var(--theme-main-color);-webkit-border-radius:50px 50px 50px 50px;border-radius:50px;opacity:0;z-index:1000;pointer-events:none;-webkit-transition:350ms;-moz-transition:350ms;-ms-transition:350ms;-o-transition:350ms;transition:350ms;-webkit-box-shadow:-30px 30px 80px 1px rgba(0,0,0,.3);box-shadow:-30px 30px 80px 1px rgba(0,0,0,.3)}.os--page-is-scrolled #os-goup{opacity:1;pointer-events:all}#os-goup:before{background-image:url("../img/os-goup.svg");content:'';position:absolute;top:10%;left:15%;width:70%;height:70%;background-repeat:no-repeat;background-position:center center}