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At-Rule ↔ @ prefix Directive to control CSS behavior for next block/line

aka rule, CSS-Directive

@identifier __define_rule_here;

@media​

At-Rule to conditionally apply Style Rule vs Media Query

@charset

@import

@namespace

@font-face​

to declare web font - will not trigger immediate download

References​

  1. @media ↔ At-Rule to conditionally apply Style Rule vs Media Query

  2. @mixin ↔ At-Rule to Encapsulate Style Rule with optional args

  3. @tailwind ↔ At-Rule to declare tailwind layers & CSS resets