HTML
<div class="client-logo">
<picture>
<source srcset="../../images/clients/.svg" type="image/svg+xml" />
<img sizes="(min-width: 60em) 200px, (min-width: 40em) 25vw, (min-width: 48em) 33vw, (min-width: 20em) 50vw, 100vw" srcset="../../images/clients/.png 250w, ../../images/clients/@1-5x.png 375w, ../../images/clients/@2x.png 500w" alt="client logo" />
</picture>
</div>