Minecraft - No Fall Damage Tutorial | Command Block Advent Calendar [Day 1]

This is the first day of my command block advent calendar. Feel free to leave any questions or requests for tutorials you have in the comments. ============================================================================= Music:    • ♩♫ Christmas Music ♪♬ - The Warmth of Wint...   ============================================================================= Command: (Beware of hidden characters) /execute @a ~ ~ ~ detect ~ ~-3 ~ minecraft:air 0 effect @p minecraft:jump_boost 1 255 true