Iframe Embedding Problematic Headings

My Hobbies

These all are activities I love to do on a regular basis.

Playing Soccer

Soccer is a team sport played between two teams of eleven players with a spherical ball.

Dancing

Gardening

Gardening is the practice of growing and cultivating plants as part of horticulture.

Code

<h1>
  My Hobbies
</h1>
<p>
  These all are activities I love to do on a regular basis.
</p>
<h2>
  Playing Soccer
</h2>
<p>
  Soccer is a team sport played between two teams of eleven players with a spherical ball.
</p>
<h2>
  Dancing
</h2>
<iframe src="https://s.codepen.io/accessibility-developer-guide/debug/GvJKBG/bZAQWNwpgzbM" title="Additional info about dancing"></iframe>
<h2>
  Gardening
</h2>
<p>
  Gardening is the practice of growing and cultivating plants as part of horticulture.
</p>
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