title: How to wisely choose image resolution based on its container size?
body: <p>Given:  </p>
  
  <ol>
  <li>I have a container of 64px * 64px which is used to display an image</li>
  <li>I have an image of a very high resolution (5000px * 5000px)</li>
  </ol>
  
  <p><strong>What resolution would be optimal for the image?</strong></p>
  
  <p>Assuming that website will not be zoomed and I want image to look perfect on all possible devices.</p>
  
  <p>P.S.
  My assumption is that 64px * 64px is not a suitable resolution for image because there are devices with pixel ratio > 1.</p>