✅ 1. :has() — Parent Selector

Finally, full support across modern browsers.

.card:has(img:hover) {
  border: 2px solid blue;
}

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✅ 2. Scoped CSS with @scope

Scoping styles to a specific section of the DOM.

@scope (.section) {
  h2 {
    color: coral;
  }
}

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✅ 3. Container Style Queries

Now you can style based on container styles, not just size.

@container style(color: red) {
  .child {
    border-color: red;
  }
}

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✅ 4. Anchor Positioning

Precise UI control with anchored popups/tooltips.

.tooltip {
  anchor-name: --button;
  position-anchor: --button;
}

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✅ 5. color-mix() Function

Mix two colors with CSS natively:

color: color-mix(in srgb, red 70%, blue);

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Stay ahead by experimenting in Canary/Dev browsers and checking caniuse.com.