div {
width: 250px;
height: 100px;
border:5px solid #000000; color:black;
font-weight: bold; text-align: center;
}
div#d1 { background-color: red; margin:0px;
}
div#d2 { background-color:green; margin:5px 0px 0px 15px; }
div#d3 { background-color:blue; margin:0px 0px 0px 75px; }
div#d4 { background-color:yellow; margin:15px;
}