[Bug]: Part of sample code on "Strict Mode" page doesn't work about reactjs.org

[rickhanlonii]

Done: #6705

[rickhanlonii]

Confirmed, I think the easy fix is:

<ul
  onPointerEnter={() => setIsHover(true)}
  onPointerLeave={() => setIsHover(false)}
  style={{
    display: 'flex',
    flexWrap: 'wrap',
    paddingTop: '10px',
    paddingBottom: '10px',
    backgroundColor: isHover ? '#ddd' : '#fff'
  }}
>

And remove the paddingBottom from the li elements.

But I would add those classes to the CSS file. Do you want to submit the PR?

[HiEv]

@rickhanlonii You did the work. If you think it looks good, go for it.