Description

In Cascading Style Sheets (CSS), a key feature is the cascade itself. In the cascade, styles set at different levels take different levels of importance, so a style that’s set in a globally linked style sheet can be overridden by a style for the same class or id that’s included in an embedded style sheet. The style attribute goes a level further, to override styles set in linked or embedded style sheets.

However, the use of the style attribute is generally considered to be a bad practice, as it causes the presentation to become intrinsically mixed with the content of the document—a practice that’s almost as bad as using the font element to style text. One way in which you might use inline styles is to debug CSS display issues (applying the style at its lowest level in the cascade, and progressively moving higher up the cascade until the problem is isolated). You should, therefore, avoid using inline style attributes in your markup.