.signin-button{color:#fff;text-align:center;cursor:pointer;background-color:#ffffff1a;border:1px solid #fff;border-radius:16px;margin:4px 2px;padding:10px 20px;font-size:16px;text-decoration:none;transition:all .3s;display:inline-block}@media (max-width:640px){.signin-button{padding:8px 16px;font-size:14px}}@media (max-width:420px){.signin-button{padding:6px 14px;font-size:13px}}.signin-button:hover{color:#000;background-color:#fff;box-shadow:0 0 20px #ffffff80}