Create a large glass aquarium whose side panel develops a visible crack and then bursts. The simulation must include: - Water escaping through the opening with flow strength based on water depth and decreasing as the tank drains - A curved water jet affected by gravity - A spreading puddle that collides with the room boundaries - Fish, rocks, plants, and a floating toy reacting differently according to density, buoyancy, drag, and current - Objects transitioning correctly from underwater motion to airborne motion and then to floor collisions - Fish attempting to swim against the current before being swept through the breach - Glass fragments with angular velocity, collisions, and water resistance - A visible waterline that lowers continuously rather than disappearing all at once Let the user drag the crack vertically before triggering the failure. A lower crack should initially produce a stronger jet than a higher crack. Give me 1 html file

**Creating simulation setup**

I need to create an index.html file, and I might need to inspect it to ensure it's empty. I want to implement a rich canvas simulation in a single file. My goal is to keep the final code concise but substantial. I’ll craft a physics simulation for the canvas, focusing on visual satisfaction. There will be a drag crack vertically that triggers with a button, simulating a large aquarium with water, entities, and various behaviors. Let’s get started on writing this!