#div-form-login{
	border: 1px solid #ddd;
	padding: 15px;
	width: 30%;
	margin: 0 auto;
}

button{width: 120px;}

@media(max-width: 800px){
	#div-form-login{width: 80%};
}

@media(max-width: 420px){
	button{width: 100%;}
}