body { 
	text-align: center; 
	margin: 1.07vw; 
	padding: 0; 
	background: #B0B0B0;
	font-family: Tahoma, Verdana, Helvetica, Arial;
	font-size: 1vw;
}

div {
    width: 30vw;
    max-width: 400px;
    min-width: 280px;
    margin: 40px auto;
    padding: 0;
    border: 2px solid #444;
    box-sizing: border-box;
}

@media (max-width: 600px) {
    div {
        width: 90vw;
        max-width: 90vw;
        min-width: 200px;
    }
}

input {
	border: 1px solid #123;
	width: 130px;
	max-width: 100%;
	margin: 4px;
	padding: 8px;
	box-sizing: border-box;
}

@media (max-width: 600px) {
    input {
        width: 100%;
    }
    
    button {
        width: 100% !important;
        max-width: 100% !important;
    }
}

p {
    margin: 4px;
    color: #333;
}