HTML Heading 1 Element

HTML Heading 1 <h1> tag is used to define heading of type 1 in an HTML document.

Example

A simple Heading 1 element is shown in the following example.

index.html

</>
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<!DOCTYPE html>
<html>
    <body>
        <h1>Hello World</h1>
    </body>
</html>

Note: HTML Heading 1 element starts with the tag <h1> and ends with an end tag </h1>.

Default CSS for HTML <h1>

By default, following CSS properties are set for a Heading 1 element.

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display: block;
font-size: 2em;
margin-block-start: 0.67em;
margin-block-end: 0.67em;
margin-inline-start: 0px;
margin-inline-end: 0px;
font-weight: bold;

Inline Style for HTML Heading 1 Element

We can change the style of Heading 1 element through inline styling using style attribute.

In the following example, we have set the color as red for the Heading 1 element.

index.html

</>
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<!DOCTYPE html>
<html>
    <body>
        <h1 style="color:red;">Hello World</h1>
    </body>
</html>

Apply CSS for HTML Heading 1 Element

We can apply CSS for all Heading 1 elements using the h1 tag.

index.html

</>
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<!DOCTYPE html>
<html>
    <head>
        <style>
            h1 {
              color:red;
            }
          </style>
    </head>
    <body>
        <h1>Hello World</h1>
    </body>
</html>

Conclusion

In this HTML Tutorial, we learned about HTML <h1> tag and went through different examples that cover defining an HTML Heading 1 element, and styling it.