main > .introduction
{
    max-width: 100%;
    width: 500px;
    margin-left: auto;  
    margin-right: auto; 
    margin-bottom: 50px;
    margin-top: 10px;
    text-align: center; 
}

main > form
{
	max-width: 100%;
	width: 500px;
	margin-left: auto;
	margin-right: auto;
	border: 1px solid #CED4DA;
	padding: 14px;
}

main > form .col-form-label
{
	font-weight: bold;
}

@media screen and (max-width: 575px)
{
    main > form .col-form-label
    {
    	position: absolute;
    	width: 1px;
    	height: 1px;
    	padding: 0;
    	margin: -1px;
    	overflow: hidden;
    	clip: rect(0, 0, 0, 0);
    	border: 0;
    	white-space: nowrap;
    }
}