CSS Image Sprites

Subject: css

CSS Image Sprites

CSS Image Sprites are a technique where multiple small images (like icons or buttons) are combined into a single image file. CSS is used to show only the required portion of the image at a time, which reduces HTTP requests and improves website performance.

Why Use Image Sprites?

  • Fewer HTTP Requests: Only one image file instead of many.
  • Faster Page Load: Reduces server roundtrips.
  • Efficient Asset Management: Easy to update grouped icons.

Example Image Sprite Structure

Imagine a single image file (sprite.png) containing four icons arranged horizontally.

Example: Using CSS to Show Parts of a Sprite

🚀 Try it in Compiler

Note: Replace 'public/css/sprite.png' with your actual sprite image path. Each icon is 50x50 pixels.

How It Works

  • The .sprite class sets the base size and background image.
  • Each specific class (.home, .search, etc.) moves the background position to show the correct icon.
  • No cropping or JavaScript needed, only CSS background positioning.

Use Cases

  • Navigation icons
  • Social media icons
  • Button states (hover, active)
  • Game assets

Key Takeaways

  • Image sprites combine multiple images into one for better performance.
  • CSS background-position controls which part of the sprite is shown.
  • Ideal for small, repetitive icons like menus or social links.
  • Helps reduce bandwidth and page load times.
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