div{
position: absolute;
width:250px;
height:100px;
border: 5px solid #000;
color: black;
font-weight: bold;
text-align: center;
}

div#d1{
background-color:red;
left: 0px;
top: 0px;
}

div#d2{
background-color:green;
left: 75px;
top:25px;
}

div#d3{
background-color:blue;
left: 150px;
top:50px;
}

div#d4{
background-color:yellow;
left:225px;
top:75px;
}