An HTML element usually consists of a start tag and end tag, with the content inserted in between:
<tagname>Content goes here...</tagname>
The HTML element is everything from the start tag to the end tag:
<p>My first paragraph.</p>
| Start tag | Element content | End tag | 
|---|---|---|
| <h1> | My First Heading | </h1> | 
| <p> | My first paragraph. | </p> | 
| <br> | 
HTML elements with no content are called empty elements. Empty elements do not have an end tag, such as the <br> element (which indicates a line break).

