List six levels of headings

Answer 1

<h1></h1>
<h2></h2>
<h3></h3>
<h4></h4>
<h5></h5>
<h6></h6>

Answer 2

<h1> </h1>
<h2> </h2>
<h3> </h3>
<h4> </h4>
<h5> </h6>

Answer 3

<h1>,<h2>,<h3>,<h4>,<h5>,<h6>