Can a triangle-shaped HTML video display be achieved using CSS border-radius?

I am currently working on an interesting project where I want to display an HTML video tag in a unique triangle shape rather than the conventional rectangle form. Here is the default display:

<!DOCTYPE html>
<html>

<head>
  <title>Video Default</title>
</head>

<body>

  <video width="640" height="360" controls>
  <source src="https://durendel.com/event/theater/gravityphase.mp4" type="video/mp4">
  Your browser does not support the video tag.
</video>

</body>

</html>

As you can see, the default display is rectangular and I am aiming to achieve a triangular shape like this:

https://i.sstatic.net/HsgZF.jpg

I have been exploring the use of CSS to achieve this effect, specifically with the border-top-left radius and border-top-right-radius properties but I am only able to get curved shapes. Here is the code snippet:

video {
  border-top-left-radius: 200px;
  border-top-right-radius: 200px;
  overflow: hidden;
}
<!DOCTYPE html>
<html>

<head>
  <title>Video</title>
</head>

<body>

  <video width="640" height="360" controls>
    <source src="https://durendel.com/event/theater/gravityphase.mp4" type="video/mp4"> Your browser does not support the video tag.
    </video>

</body>

</html>

The issue I am facing, as evident from the code above, is that the corners only curve instead of forming a pointed triangle. So my question is, is it possible to create a triangular display for an HTML video tag using CSS border-radius? Or could someone offer guidance on what approach I should take to achieve this desired outcome?

Answer №1

It seems unlikely that border-radius can achieve this effect.

However, you can use clip-path to accomplish the desired result:

video {
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}
<!DOCTYPE html>
<html>

<head>
  <title>Video</title>
</head>

<body>

  <video width="640" height="360" controls>
    <source src="https://durendel.com/event/theater/gravityphase.mp4" type="video/mp4"> Your browser does not support the video tag.
    </video>

</body>

</html>

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