compression level

watch out image compression level and natural width.
should be less pixels.

Total bits = pixel x bit per pixel

    body {
      margin: 0;
    }
    img {
      float: left;
      margin-right: 10px;
      width: calc((100% - 20px)/3);
    }
img:last-of-type {
	margin-right: 0;
	}

Vector scales without quality degradation.

$0.naturalWidth
601
$0.naturalWidth
1202