strimertul-website/layouts/releases/_markup/render-image.html

<!-- Images that use the standard image format for markdown will be displayed in a 
  magnific modal popup. Use format ![alt text](/path/to/image.img) -->
<!-- Place this file in layouts > _default > _markup > render-image.html -->
<!-- Also place the image-modal.css and partial/image-modal.html appropriately. -->
<!-- Id for the image on the page is set to a random 6 numbers, chosen from 1 to 500 -->
<!-- Onclick opens the modal, and displays/overlays the the image that has the id for the 
  clicked image. -->
<!-- attribution appreciated. github: zjeaton web: https://froglegs.co -->

<div class="md__image">
  <img
    id="{{ first 6 (shuffle (seq 1 500)) }}"
    src="{{ .Destination | safeURL }}"
    onclick="openModal(this.id)"
    alt="{{ .Text }}"
    {{ with .Title }}title="{{ . }}"{{ end }}
  />
</div>