Rauno Freiberg (designer at Vercel) shares his web guidelines for web interfaces. A few that stood out for me:

• Inputs should be wrapped with a <form> to submit by pressing Enter
• Interactive elements should disable user-select for inner content
• Actions that are frequent and low in novelty should avoid extraneous animations

Read them all on Rauno's (beautiful) website, and check out the Craft section while you're there.