.main{    position: fixed;
	width: 100%;
	min-width: 750px;
	height: 100%;
	overflow: hidden;
	z-index: 111;
	top: 0;
	left: 0;
	background: url(../jpg/bg.jpg) center center; background-size:cover;}
#svgs{ 
	position: absolute;
    top: 50%;
    left: 50%;
		transform: translate(-50%, -50%);
		-o-transform: translate(-50%, -50%);
		-webkit-transform: translate(-50%, -50%);
		-ms-transform: translate(-50%, -50%);
		-moz-transform: translate(-50%, -50%);
    width: 750px;
    height: 750px;
}

@media(max-width:1080px) {
	.main{ min-width: 100%; }
	#svgs{ width: 100%; height: 100%;}
}