Why does the video cover extend past its lower boundary in HTML?

I'm facing an issue where a purple cover over the <video> element extends slightly beyond the video's bottom border. Here's the code I'm using:

.media-cover {
  display: inline-block;
  position: relative;
}

.media-cover:after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background-color: #6b478fb3;
  opacity: 0;
}

.media-cover:hover:after {
  opacity: 1;
}

video {
  border: 2px solid red;
  height: 150px;
}
<div class="media-cover">
  <video class="cmedia-box" controls>
  <source class="cmedia" src="https://cdn.theguardian.tv/mainwebsite/2017/08/04/040717heart_desk.mp4" />
</video>
</div>

Looking for assistance to resolve this.

htmlcsshtml5-video

Answer №1

Every small part of a document can be considered a form of communication. Just like typing out individual letters, the browser also interprets spaces between them.

When it comes to inline elements, such as videos with default display values set to "inline", the browser includes spaces around them in the rendering process:

<div class="media-cover">
   <video class="cmedia-box" controls>...</video>
</div>

This will result in a space being rendered after the video element, just before the closing </div> tag. To prevent this extra space from appearing, there are several approaches you can take:

a) Avoid adding unnecessary spaces:

<div class="media-cover">
   <video class="cmedia-box" controls>...</video
></div>

In this case, make sure there is no space between the closing </video> and the opening </div> tags.

b) Change the display value to block level (by using display:block) to solve the issue.

c) Consider floating the inline element by applying float:left, which can also resolve the problem.

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