body {
}
.left{float:left;}
.right{float:right;}
.clear{clear:both;}

.block{height:100px; float:left; width:100px;}
.b1-001{background-image:url('Images/blocks/b1-001.png'); background-position:top left; background-repeat:no-repeat; height:100px; width:100px;}
.b2-001{background-image:url('Images/blocks/b2-001.png'); background-position:top left; background-repeat:no-repeat; height:100px; width:100px;}
.b3-001{background-image:url('Images/blocks/b3-001.png'); background-position:top left; background-repeat:no-repeat; height:100px; width:100px;}
.b4-001{background-image:url('Images/blocks/b4-001.png'); background-position:top left; background-repeat:no-repeat; height:100px; width:100px;}