body {
    background-image: url(../images/lab_top.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: 0 0;
}

	@media screen and (max-width: 766px) {
		body {
		    background-position: 50% 50%;
		}
	}


	@media screen and (max-width: 766px) {
		#icon {
		    margin-top: 300px;
		}
	}

	@media screen and (max-width: 766px) {
		.center_area .txt {
		    padding-top: 190px;
		}
	}