There is one last thing about box models. In HTML, there is what we call block elements and inline elements.

 Block elements: It uses the full width of the browser and always starts on a new line. You can see them as blocks you need to pile one after another. Headings and paragraphs are some examples of block elements.

 Examples of block-level elements:

• <div>
• <h1> - <h6>
• <p>
• <form>

Inline elements: Inline elements don't start on a new line and only take up as much width as necessary. Look at this example of the blue elements: 

The following are examples of inline elements:

• <span>
• <a>
• <img>