<figure>
	<div class="container auto-fill">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/eyes-like-the-sky.jpg" alt="">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/gumboot-soup.jpg" alt="">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/microtonal-banana.jpg" alt="">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/polygondwanaland.jpg" alt="">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/twelve-bar-bruise.jpg" alt="">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/quarters.jpg" alt="">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/sketches-of-brunswick-east.jpg" alt="">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/nonagon-infinity.jpg" alt="">
	</div>
	<figcaption>auto-fill</figcaption>
</figure>

<figure>
	<div class="container auto-fit">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/eyes-like-the-sky.jpg" alt="">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/gumboot-soup.jpg" alt="">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/microtonal-banana.jpg" alt="">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/polygondwanaland.jpg" alt="">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/twelve-bar-bruise.jpg" alt="">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/quarters.jpg" alt="">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/sketches-of-brunswick-east.jpg" alt="">
		<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/323064/nonagon-infinity.jpg" alt="">
	</div>
	<figcaption>auto-fit</figcaption>
</figure>
*,
*::before,
*::after {
  box-sizing: inherit;
}

html,
input {
  box-sizing: border-box;
}

html,
body {
	height: 100%;
	margin: 0;
	padding: 0;
	min-height: 100%;
}

img,
embed,
object,
video {
	max-width: 100%; // without it images break away from columns
	height: auto;
}

.container {
  display: grid;
	grid-gap: 5px;
	background: whitesmoke;
}

.auto-fill {
 	grid-template-columns: repeat(auto-fill, 100px);
}

.auto-fit {
	grid-template-columns: repeat(auto-fit, 100px);
}
View Compiled
Run Pen

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.