Responsive image with a close button in corner

Issue

I need a Lightbox with a responsive image that has a close button in the top right corner of the image.

This works only in Safari:

* {
  box-sizing: border-box;
}

.lightbox {
  position: fixed;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 50px;
  background: rgba(0 0 0 / 0.9);
}

.inner {
  position: relative;
  height: fit-content;
}

img {
  display: block;
  max-width: 100%;
  max-height: 100%;
}

button {
  position: absolute;
  right: 0;
  top: 0;
}

<div class="lightbox">
  <div class="inner">
    <img src="https://fakeimg.pl/1600x900" />
    <button></button>
  </div>
</div>

But in Chrome and Firefox the height: fit-content of .inner doesn't work.

Here is a video demonstration.

Solution

* {
  box-sizing: border-box;
}

.lightbox {
  position: fixed;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 50px;
  background: rgba(0 0 0 / 0.9);
}

.inner {
  position: relative;
  height: fit-content;
}

img {
  display: block;
  max-width: 100%;
  max-height: 100vh;
  object-fit: cover;
  object-position: center;
}

button {
  position: absolute;
  right: 0;
  top: 0;
}

<div class="lightbox">
  <div class="inner">
    <img src="https://fakeimg.pl/1600x900" />
    <button></button>
  </div>
</div>

You can use "100vh" instead of "100%" it will help

Answered By - ertuozdenli