.mainImg_wrap {
	max-width: 100%;
    padding-top:137.1%;
    position: relative;
    overflow: hidden;
}
.mainImg_wrap .mainImg_box {
	position: absolute;
	top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}
.noslider > div {
	display: none;
}
.noslider > div:first-child {
	display: block;
}
.noslider > div:first-child img {
	width: 100%;
    height: auto;
}
	@media only screen and (min-width: 768px){
	.mainImg_wrap {
		width: 1920px;
		margin: 0 auto;
		padding-top: 40.41%
	}
}
@media only screen and (min-width: 1920px){
	.mainImg_wrap {
		width: 1920px;
		height: 776px;
		padding-top:  0;
		margin: 0 auto;
	}
}