Pixels are expensive

Forward to the 16:00 mark to get a good overview of how browsers go from receiving a tad of CSS to actual pixels on screen, a process known as the rendering pipeline:

  1. Recalc styles
  2. Layout
  3. Paint
  4. Composite Layers

If you like reading more than watching a video, a write-up is also available: Pixels are expensive →

Note: If you’ve been reading the posts here on bram.us tagged performance, you’ll most likely already know this stuff. It’s a good refresher nonetheless.

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One Response to Pixels are expensive

  1. Pingback: Understanding the Critical Rendering Path | Bram.us

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