In this Hasty Treat, Scott and Wes continue a three-part series about old browsers, fallbacks and polyfills. In part two, they talk specifically about CSS Grid, Flexbox, new features and fallbacks, and how to use them.

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Show Notes

3:08 - CSS Grid and Flexbox

Flexbox old spec
Flexbox new spec
CSS Grid
Some popular options for supporting for supporting CSS Grid and/or Flexbox:
- Just serve the mobile layout
- Display block
- Separate layout that you will eventually delete
Can I Use
Do websites need to look exactly the same in every browser?
Modernizr
CSS3, Please!
Autoprefixer

12:38 - CSS Variables

Double define
Just like Grid, unknown def will be ignored and fallback to CSS
CSS Houdini

17:00 - Fallback Code

@supports
Display block then display grid
Feature Testing
Detect the browser as a last resort

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Show Notes

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