How to make quicksand in VANILLA MINECRAFT

in this video I show you how to make easy and simple quicksand in VANILLA minecraft only using 3 commands
Commands:
GIVE COMMAND - /give @s command_block
TOP COMMAND BLOCK - execute as @a at @a if block ~ ~ ~ cobweb if block ~ ~1 ~ minecraft:sand run effect give @s minecraft:mining_fatigue 1 1 true
MIDDLE COMMAND BLOCK - execute as @a at @a if block ~ ~ ~ cobweb if block ~ ~1 ~ minecraft:sand run damage @s 1 minecraft:in_wall
BOTTOM COMMAND BLOCK - execute as @a at @s if block ~ ~-2 ~ cobweb if block ~ ~-1 ~ minecraft:sand run tp @s ~ ~-.1 ~
#minecraft #tutorial #minecraftcommands

[@NOVA-yt7]

I don't know why this video isn't viral new sub by the way