HTML test

List Header
Term 1
This is the definition of the first term.
Term 2
This is the definition of the second term.

The code below is the code seen in the Code Editor. No <p> tags are inserted. <div> within the Custom HTML block within a definition list it works too. I wrapped one dt dd pair in a yellow background <div>.

<!-- wp:html -->
<div style="background:lightblue;">
<dl>
<lh>List Header</lh>
<div style="background:yellow;">
<dt>Term 1</dt>
<dd>This is the definition of the first term.</dd>
</div>
<dt>Term 2</dt>
<dd>This is the definition of the second term.</dd>
</dl>
</div>
<!-- /wp:html -->