Which attribute is used in HTML to define inline styles?

The attribute used in HTML to define inline styles is the style attribute. Inline styles allow you to apply CSS directly to an individual HTML element, providing a quick way to customize presentation without needing an external stylesheet.

When you use the style attribute, you can specify CSS properties and values directly within an HTML tag. For example, <p style="color: red; font-size: 16px;">This is a paragraph.</p> will render the paragraph in red with a font size of 16 pixels. This approach is convenient for small tweaks or when testing styles, but it is generally less maintainable than using external stylesheets.

Other attributes, such as class and id, are generally used for selecting and styling elements through CSS but do not directly apply styles themselves. The class attribute relates to a group of elements that share the same styling, while the id is unique and can be used to target a specific element. The link attribute is typically related to linking documents together, such as referencing stylesheets or other resources, and is not used for inline styles.