In CSS, !important is a special flag that can be added to a CSS rule to give it highest priority, overriding other conflicting rules — even those with higher specificity or coming later in the stylesheet.

Syntax:

selector {  property: value !important;}

Example:

p {  color: red !important;}p {  color: blue;}

In this case, the paragraph (<p>) text will be red, not blue, because the first rule has !important.

Use Cases:

• Overriding inline styles or third-party styles.

• Quick fixes or testing.

Warnings:

• Avoid overusing !important. It can make your CSS hard to maintain and debug.

• It breaks the natural cascade and specificity logic.

• It's often better to refactor your CSS or increase specificity than to rely on !important.

Good Alternative:

Instead of:

.button {  color: green !important;}

Prefer:

body .main-container .button {  color: green;}

Use !important only when absolutely necessary — like when dealing with styles you can't otherwise control (e.g., from browser extensions or third-party libraries).