<div class="container">
<div>
</div>
</div>
.container {
width: 500px;
height: 250px;
margin: auto;
border: 5px solid;
overflow: auto;
}
.container > div {
width: calc(100% + 40px*9);
height: calc(100% + 40px*4);
}
This Pen doesn't use any external CSS resources.
This Pen doesn't use any external JavaScript resources.