Here is the conventional method How to Format the Heading Tags
HTML
<H1>Chinese and Thai Cooking Classes: Recipes,
foods, and more!</H1>
<H2>Chinese Cooking Classes</H2>
<H3>Chinese Recipes: Mandarin and
Cantonese</H3>
<H3>Chinese Food Preparation</H3>
<H2>Thai Cooking Classes</H2>
<H3>Thai Recipes</H3>
<H3>Thai Food Preparation</H3>
Notice that the H1 tag describes what the page is about. The other heading tags are the sub-headings to help guide the reader through the page.
Customizing the Heading Tag Using CSS
Normally the Heading Tag is very large and may not fit well within the structure of your page. It often contains too much space around it and therefore will move other elements further down the page. This will create an unprofessional appearance to your site.