.pinlogin {
	text-align:center;
}


.pinlogin .pinlogin-field {
	box-sizing:border-box;
	
	display:inline-block;
	
	width: 40px;
	height: 40px;
	
	padding: 5px;
	
	margin: 0 10px;
	
	border:1px solid #ccc;
	
	-webkit-border-radius:2px;
	-moz-border-radius:2px;	
	border-radius: 2px;
	
	text-align:center;
}

.pinlogin .pinlogin-field:first-of-type {
    margin-left: 0;
}

.pinlogin .pinlogin-field:last-of-type {
    margin-right: 0;
}

.pinlogin .pinlogin-field:read-only {
	border:1px solid #ddd;
	background:#fafafa;
	cursor:default;
}

.pinlogin .pinlogin-field.invalid {
	border:1px solid red;
	color:red;
}