body {
margin:0px;
}
div {
width: 250px;
height: 100px; color:black;
font-weight: bold; margin:25px;
border:5px solid #000000; }
div#d1 {
float:left; background-color: red;
}
div#d2 {
float:left; background-color:green;
}
div#d3 {
float:left; background-color:blue;
}