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                <h1>Fixed-height elements with an intrinsic ratio</h1>

<div class="intrinsic-ratio">
  <canvas class="ratio-shim" width="200" height="100"></canvas> 
  <img src="">
  <p>At viewport widths below 800px the element is 200px tall. Above that it is 300px tall.</p>
  <p>The element retains its 2:1 aspect ratio without needing to hardcode a width.</p>
  <p>Read more <a href="">on my blog</a>.</p>



                .intrinsic-ratio {
  position: relative;
  display: table-cell;
  width: auto;
  height: 200px; /* height can be any value */
  /* border demonstrates that the element exactly wraps its contents */
  border: 1px solid red;
.ratio-shim {
  height: 100%;
/* The content could be anything. In this case an img */
.intrinsic-ratio img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
/* Demonstrating that aspect ratio is retained at any height */
@media screen and (min-width: 800px) {
  .intrinsic-ratio {
    height: 300px;