When Should You Stop “Fixing” a UI?

I’ve noticed that sometimes a UI can become more complicated the more we try to improve it.

For example, you start with a simple card layout, then add hover effects, animations, responsive adjustments, extra JavaScript, and a few edge-case fixes. Eventually, something that originally worked with a small amount of CSS becomes difficult to maintain.

So I’m curious how other developers decide when to stop tweaking a UI.

Do you usually prioritize:

  • Simpler CSS over more visual effects?

  • Fewer animations?

  • Better mobile behavior?

  • Cleaner JavaScript?

  • Pixel-perfect design?

  • Or simply stopping once the experience feels good enough?

I’m particularly interested in examples where removing code actually made a website better.

What’s your personal “this is good enough, stop touching it” rule?