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Published on Jan 1, 2019
Learn how to create CSS layouts that are self-governing, using Flexbox and Grid.
*IMPORTANT:* The code at 4.02 is incomplete. You need to add `flex-basis: 0` to the `.not-sidebar` element. Combined with `flex-grow: 666` this essentially means "grow from 0 to an absurdly high proportion of the available space".