.back-top{background:#fff}a.arrow-scroll{border:2px solid #42515a;border-radius:30px;color:#42515a;display:inline-block;font-size:18px;font-weight:600;max-width:225px;padding:11px 0;text-align:center;width:100%}a.arrow-scroll:hover{background:#fff}.inner-back{padding:60px 0;text-align:center}.inner-back a img{margin-right:10px;margin-top:-5px}@media(max-width:640px){.inner-back{padding:10px 0 60px}}