.signin-button{background-color:rgba(255,255,255,.1);border:1px solid white;color:white;padding:10px 20px;text-align:center;text-decoration:none;display:inline-block;font-size:16px;margin:4px 2px;cursor:pointer;border-radius:16px;transition:all .3s ease}@media (max-width:640px){.signin-button{font-size:14px;padding:8px 16px}}@media (max-width:420px){.signin-button{font-size:13px;padding:6px 14px}}.signin-button:hover{background-color:white;color:black;box-shadow:0 0 20px rgba(255,255,255,.5)}