<div id="div-1" class="col-50">
</div>
<div id="div-2" class="col-50">
</div>
.col-50{
float: left;
height: 200px;
width: 50%;
}
#div-1{
background-color: red;
}
#div-2{
background-color: blue;
}
This Pen doesn't use any external CSS resources.
This Pen doesn't use any external JavaScript resources.