image scale down in IE

by Yifei Yu

HTML

<div class="outer">
  <div class="inner">
    <img src="http://placehold.it/480x360">
  </div>
  
  <div class="inner">
    <img src="http://placehold.it/480x360">
  </div>
</div>

CSS

div.outer {
  width: 400px;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
}

div.inner {
  width: 100%;
  border: 1px solid red;
}

img {
  width: 100%;
  height: auto;
}