Academy HTML CSS JavaScript TypeScript SQL MongoDB Python NumPy Pandas PHP Java C C++ C# Bootstrap Tailwind CSS jQuery React Vue.js Node.js Git
❮ ❯

CSS Aspect Ratio

Maintain consistent width-to-height dimensions on responsive elements.

❮ Previous Next ❯

The aspect-ratio CSS property allows you to define the ratio between width and height (e.g. 16 / 9 or 1 / 1). This eliminates layout shifts (CLS) when images and videos load.

Key Takeaways: CSS Aspect Ratio

Mastering CSS Aspect Ratio helps you write clean and reliable CSS code. Follow standard conventions, test edge cases, and keep logic simple. Try running the code example below and complete the exercises to build confidence.

CSS Aspect Ratio Code Example

CSS 
.video-container {
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #1e293b;
}
Output
Maintains 16:9 proportion regardless of element width
Free sign-in required · Google login available
Finished this lesson?
Mark it complete to track your progress.
❮ Previous
CSS Scroll Snap
Next ❯
CSS Backdrop Filter

Stuck on something?

Ask the community in the CodesInTech forum.

Need a developer?

Learning on your own is great — and when you need professional help, our team builds custom software, websites and mobile apps for clients worldwide.

Explore Our Services