Is there an equivalent to background-size: cover and contain for image elements?

Assuming you can arrange to have a container element you wish to fill, this appears to work, but feels a bit hackish. In essence, I just use min/max-width/height on a larger area and then scale that area back into the original dimensions.

.container {
  width: 800px;
  height: 300px;
  border: 1px solid black;
  overflow:hidden;
  position:relative;
}
.container.contain img {
  position: absolute;
  left:-10000%; right: -10000%; 
  top: -10000%; bottom: -10000%;
  margin: auto auto;
  max-width: 10%;
  max-height: 10%;
  -webkit-transform:scale(10);
  transform: scale(10);
}
.container.cover img {
  position: absolute;
  left:-10000%; right: -10000%; 
  top: -10000%; bottom: -10000%;
  margin: auto auto;
  min-width: 1000%;
  min-height: 1000%;
  -webkit-transform:scale(0.1);
  transform: scale(0.1);
}
<h1>contain</h1>
  <div class="container contain">
    <img 
       src="https://www.google.de/logos/doodles/2014/european-parliament-election-2014-day-4-5483168891142144-hp.jpg" 
       />
    <!-- 366x200 -->
  </div>
  <h1>cover</h1>
  <div class="container cover">
    <img 
       src="https://www.google.de/logos/doodles/2014/european-parliament-election-2014-day-4-5483168891142144-hp.jpg" 
       />
    <!-- 366x200 -->
  </div>

Solution #1 - The object-fit property (Lacks IE support)

Just set object-fit: cover; on the img .

body {
  margin: 0;
}
img {
  display: block;
  width: 100vw;
  height: 100vh;
  object-fit: cover; /* or object-fit: contain; */
}
<img src="https://loremflickr.com/1500/1000" alt="A random image from Flickr" />

See MDN - regarding object-fit: cover:

The replaced content is sized to maintain its aspect ratio while filling the element’s entire content box. If the object's aspect ratio does not match the aspect ratio of its box, then the object will be clipped to fit.

And for object-fit: contain:

The replaced content is scaled to maintain its aspect ratio while fitting within the element’s content box. The entire object is made to fill the box, while preserving its aspect ratio, so the object will be "letterboxed" if its aspect ratio does not match the aspect ratio of the box.

Also, see this Codepen demo which compares object-fit: cover applied to an image with background-size: cover applied to a background image

Solution #2 - Replace the img with a background image with css

body {
  margin: 0;
}

img {
  position: fixed;
  width: 0;
  height: 0;
  padding: 50vh 50vw;
  background: url("https://loremflickr.com/1500/1000") no-repeat;
  background-size: cover;
}
<img src="https://via.placeholder.com/1500x1000" alt="A random image from Flickr" />

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Html

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