.excellence li:nth-child(1) .excellence-header:before{
	content: url(../images/1-excellence-ico.png);
	content: -webkit-image-set(url(../images/1-excellence-ico.png) 1x, url(../images/1-excellence-ico@2x.png) 2x, url(../images/1-excellence-ico@3x.png) 3x);
}
.excellence li:nth-child(2) .excellence-header:before{
	content: url(../images/2-excellence-ico.png);
	content: -webkit-image-set(url(../images/2-excellence-ico.png) 1x, url(../images/2-excellence-ico@2x.png) 2x, url(../images/2-excellence-ico@3x.png) 3x);
}
.excellence li:nth-child(3) .excellence-header:before{
	content: url(../images/3-excellence-ico.png);
	content: -webkit-image-set(url(../images/3-excellence-ico.png) 1x, url(../images/3-excellence-ico@2x.png) 2x, url(../images/3-excellence-ico@3x.png) 3x);
}
.excellence li:nth-child(4) .excellence-header:before{
	content: url(../images/4-excellence-ico.png);
	content: -webkit-image-set(url(../images/4-excellence-ico.png) 1x, url(../images/4-excellence-ico@2x.png) 2x, url(../images/4-excellence-ico@3x.png) 3x);
}
.excellence li:nth-child(5) .excellence-header:before{
	content: url(../images/5-excellence-ico.png);
	content: -webkit-image-set(url(../images/5-excellence-ico.png) 1x, url(../images/5-excellence-ico@2x.png) 2x, url(../images/5-excellence-ico@3x.png) 3x);
}
.excellence li:nth-child(6) .excellence-header:before{
	content: url(../images/6-excellence-ico.png);
	content: -webkit-image-set(url(../images/6-excellence-ico.png) 1x, url(../images/6-excellence-ico@2x.png) 2x, url(../images/6-excellence-ico@3x.png) 3x);
}