from content, block" class="ex">label</div>
<div tabindex="0" role="heading" data-expectedlabel="label" data-testname="aria heading name from content, block" class="ex">label</div>
<div tabindex="0" role="link" data-expectedlabel="label" data-testname="aria link name from content, block" class="ex">label</div>
<br>

<h1>simple</h1>
<button data-expectedlabel="label" data-testname="button name from content" class="ex">label</button><br>
<h3 data-expectedlabel="label" data-testname="heading name from content"