#return-to-top{position:fixed;bottom:20px;right:20px;background:#000;background:rgba(0,0,0,0.7);width:50px;height:50px;display:block;text-decoration:none;-webkit-border-radius:35px;-moz-border-radius:35px;border-radius:35px;display:none;-webkit-transition:all .3s linear;-moz-transition:all .3s ease;-ms-transition:all .3s ease;-o-transition:all .3s ease;transition:all .3s ease;z-index:99}img.icon-chevron-up{width:50%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}#return-to-top:hover{background:rgba(0,0,0,0.9)}