<div class="box"> <div class="row"> <div class="item"></div> <div class="item"></div> <div class="item"></div> </div> <div class="row"> <div class="item" id="row2"></div> </div> <div class="row"> <div class="item"></div> <div class="item" id="row3"></div> </div> </div>
$width = 100px; $height = 100px; $margin = 4px; @mixin black { background-color: black; } @mixin white { background-color: white; } body { @include black; } .box { @include white; width: $width; height: $height; border-radius:$height/10; } .row { width: $width; height: $height/3; } .item { @include black; width: $width/4; height: $height/4; border-radius: $width/8; float: left; margin: $margin; } #row2 { margin: $margin $width*3/8; } #row3 { margin: $margin; margin-left: $width/3+$margin; }