.facebook-btn{overflow:hidden;cursor:pointer;display:flex;align-items:center;justify-content:center;font-weight:600;text-decoration:none;position:relative}.facebook-btn--outline{background:transparent;color:#fff;border:2px solid #3770f8;position:relative;transition:color .4s cubic-bezier(.4,0,.2,1),border-color .4s cubic-bezier(.4,0,.2,1);opacity:.85}.facebook-btn--outline:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,#3770F8,#204292);opacity:0;transition:opacity .4s cubic-bezier(.4,0,.2,1);z-index:-1}.facebook-btn--outline:hover{color:#fff;border-color:transparent;opacity:1}.facebook-btn--outline:hover:before{opacity:1}