.main {
	position: absolute;
	overflow: hidden;
	left: 0;
	top: 0;
	width: 100%;
	height: 100%;
}

.main:before {
	content: ' ';
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    opacity: 0.5;
    z-index: -1;
    background-image: url("../images/Corel.jpg");
	background-attachment: fixed;
	background-size: cover;
	background-repeat: no-repeat;
	background-position: center;
}

.main_icon {
	padding: 10px;
}