The CSS @position-try at-rule defines a custom position fallback for the position-try-fallbacks property. It takes various properties that can change […]

@position-try --my-position { position-area: top left;  }

The CSS @property at-rule lets you register a custom property. It can be used as an everyday CSS variable inside […]

@property --spacing {
  syntax: "";
  initial-value: 20px;
  inherits: true;
}

The @page at-rule lets us style a site when presented as a paged media, that is, when printed or displayed as a PDF. […]

@page { margin: 3cm; }