Square-shaped picture with Bootstrap 4 design

I need help making images of different sizes appear as squares in a preview on my webpage.

/* This is the CSS code which sets automatic height: */

.preview-img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

How can I adjust the image height based on its width without specifying pixels?

Answer №1

.display-image {
  width: 100%;
  padding-bottom: 100%;
  height: 0;
  object-fit: cover;
}

This code snippet is compatible with all major web browsers.

If you have the ability to use JavaScript,

window.addEventListener("resize", function(e) {
    var element = document.getElementsByClassName("display-image");
    mapElement.style.height = mapElement.width;
});

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