A few others are CSS Grid Garden [0] and Flexbox Froggy [1], both multi-level games that teach CSS grid and flexbox techniques with one new concept per level. T

A few others are CSS Grid Garden [0] and Flexbox Froggy [1], both multi-level games that teach CSS grid and flexbox techniques with one new concept per level. There's also Flexbox Zombies [2] which requires signup but is still fun and free. 0: https://cssgridgarden.com/ https://cssgridgarden.com/ 1: https://flexboxfroggy.com/ https://flexboxfroggy.com/ 2: https://geddski.teachable.com/p/flexbox-zombies https://geddski.teachable.com/p/flexbox-zombies