@for $i from 3 through 12 {
	.avatar-#{$i * 10} {
		width: #{$i * 10}px;
		height: #{$i * 10}px;
		overflow: hidden;
		display: inline-block;
		vertical-align: top;
	}
}

.avatar-220 {
	width: 220px;
	height: 220px;
	overflow: hidden;	
}