<div class="gray"> <div class="blue"></div> <div class="red"></div> <div class="yellow"></div> </div>
$width: 50px; $height: 50px; * { margin: 0; padding: 0; } .gray { width: $width * 4; height: $height * 4; background-color: gray; } .blue { width: $width; height: $height; background-color: blue; } .red { width: $width; height: $height; background-color: red; position: relative; left: 10px; top: 20px; } .yellow { width: $width; height: $height; background-color: yellow; }