.block-main-banner {
	display: grid;
	grid-gap: 6px;
	grid-template-columns: calc(55% - 3px) calc(45% - 3px);
}
.item-banner {
  	position: relative;
}
.item-banner img {
	height: 100%;
}
.item-banner a:before {
	content: "";
	position: absolute;
	top: 10px;
	left: 10px;
	bottom: 10px;
	right: 10px;
	z-index: 9;
	border-top: 1px solid rgba(255,255,255,.8);
	border-bottom: 1px solid rgba(255,255,255,.8);
	-ms-transform: scale(0,1);
	-webkit-transform: scale(0,1);
	transform: scale(0,1);
	-ms-transition: all 500ms ease;
	-webkit-transition: all 500ms ease;
	transition: all 500ms ease;
}
.item-banner a:after { 
	content: "";
	position: absolute;
	top: 10px;
	left: 10px;
	bottom: 10px;
	right: 10px;
	z-index: 9;
	border-left: 1px solid rgba(255,255,255,.8);
	border-right: 1px solid rgba(255,255,255,.8);
	-ms-transform: scale(1,0);
	-webkit-transform: scale(1,0);
	transform: scale(1,0);
	-ms-transition: all 500ms ease;
	-webkit-transition: all 500ms ease;
	transition: all 500ms ease;
}
.item-banner a:hover:before {
	-ms-transform: scale(1,1);
	-webkit-transform: scale(1,1);
	transform: scale(1,1);
}
.item-banner a:hover:after {
	-ms-transform: scale(1,1);
	-webkit-transform: scale(1,1);
	transform: scale(1,1);
}
.main-banner .item-banner:nth-child(1) {
	grid-area: banner1;
}
.main-banner .item-banner:nth-child(2) {
	grid-area: banner2;
}
.main-banner .item-banner:nth-child(3) {
	grid-area: banner3;
}
.main-banner .item-banner:nth-child(4) {
	grid-area: banner4;
}

/********banner-4************/
.main-banner.banner-4{
	display: grid;
	grid-gap: 6px;
	grid-template-areas:
    	'banner1 banner2'
    	'banner3 banner4';
}
/****************************/
/**
 * 
 * **************************/
/********banner-3************/
.main-banner.banner-3 {
	display: grid;
	grid-gap: 6px;
	grid-template-areas:
    	'banner1 banner1'
    	'banner2 banner3';
}
/****************************/
/**
 * 
 * **************************/
/********banner-3-on-left************/
.main-banner.banner-3-on-left {
	display: grid;
	grid-gap: 6px;
	grid-template-areas:
    	'banner1 banner2'
    	'banner1 banner3';
}
/****************************/
/**
 * 
 * **************************/
/********banner-3-on-right************/
.main-banner.banner-3-on-right {
	display: grid;
	grid-gap: 6px;
	grid-template-areas:
    	'banner1 banner2'
    	'banner3 banner2';
}
/****************************/
/**
 * 
 * **************************/
/********banner-3-on-bot************/
.main-banner.banner-3-on-bot {
	display: grid;
	grid-gap: 6px;
	grid-template-areas:
    	'banner1 banner2'
    	'banner3 banner3';
}
/****************************/
/**
 * 
 * **************************/
/********banner-2************/
.main-banner.banner-2 {
	display: grid;
	grid-gap: 6px;
	grid-template-areas:
    	'banner1 banner2'
    	'banner1 banner2';
}
/****************************/
/**
 * 
 * **************************/
/********banner-2-full************/
.main-banner.banner-2-full {
	display: grid;
	grid-gap: 6px;
	grid-template-areas:
    	'banner1 banner1'
    	'banner2 banner2';
}
/****************************/
/**
 * 
 * **************************/
/********banner-1************/
.main-banner.banner-1 {
	display: grid;
	grid-gap: 6px;
	grid-template-areas:
    	'banner1';
}
/****************************/