What is Cascade in CSS

Cascade (Cascading) is the main mechanism that determines which style will be applied when multiple CSS rules target the same element.

CSS stands for Cascading Style Sheets — cascading style sheets. The word "cascading" indicates that styles overlay each other and are applied according to certain priority rules.

What Influences Style Selection?

When multiple CSS rules are applied to one element, the browser chooses the one with highest priority. This considers:

div a        /* low specificity */
.menu a      /* higher */
#header a    /* even higher */

p { color: red !important; }