It gives extra information about an element.
They are placed inside the opening tag of an element to give extra information about that element.
Example:
<p style="color: blue;" align="center">This is a paragraph.</p>In this example:
- HTML element: <p></p> — opening tag is <p>
- Attributes:
- style="color: blue;" — makes the text blue
- align="center" — puts the text in the center