Master the Web. One Tutorial at a Time.

You write a rule that should win. It doesn't. You add !important. Now something else breaks. Specificity fights are the most common source of CSS frustration — and most tutorials only teach half the picture. This guide covers the complete system, including :is(), :where(), @layer, CSS Nesting's hidden specificity trap, and how Tailwind, Vue scoped styles, and CSS Modules each handle specificity differently.