.back {
	height: 100%;
	position: inherit;
}

.back:after {
	    background-color: rgba(43, 74, 111, 0.70);
			bottom: 0;
	    content: "";
	    left: 0;
	    position: absolute;
	    right: 0;
	    top: 0;
}

.back div {
	height: 100%;
}

#loginModal .modal-dialog {
  padding-top: 10%;
}