HTML supports 6 levels of headings (numbered, surprisingly, 1 to 6). A heading level is declared by using the following tags:
would appear in the following styles:
Heading level 1
Heading level 2
Heading level 3
Heading level 4
Heading level 5
Heading level 6
It is very important that you balance your text to the various heading styles. In most cases heading level 1 should be used for top level or main headings and heading level 2 and 3 for “side” headings.
Heading are important
Search engines use the headings to index the structure and content of your web pages.Users skim your pages by its headings. It is important to use headings to show the document structure.
How to View HTML Source?
Have you ever seen a Web page and wondered “Hey! How did they do that?”
View HTML Source Code:
Right-click in an HTML page and select “View Page Source” (in Chrome) or “View Source” (in IE), or similar in other browsers. This will open a window containing the HTML source code of the page.
Inspect an HTML Element:
Right-click on an element (or a blank area), and choose “Inspect” or “Inspect Element” to see what elements are made up of (you will see both the HTML and the CSS). You can also edit the HTML or CSS on-the-fly in the Elements or Styles panel that opens.