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Most Yuko widgets expose an Advanced CSS editor in their customize panel. Rules you add there are injected when the widget renders on your storefront.

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Where to write Advanced CSS

  1. Open the widget: Reviews → Widgets → [Widget] → Customize
  2. Switch to the Advanced CSS tab (code icon)
  3. Write standard CSS — no preprocessor, no build step
  4. Click Save to publish
Clear your page cache and CDN cache afterwards so visitors see the new styles.

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Which widgets expose Advanced CSS?

Advanced CSS is available on most but not all widgets: For the Star Rating and Sidebar widgets, use the Colors and Style panels inside the widget, or add rules to your theme’s stylesheet.

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Writing effective rules

Widget markup is considered an internal implementation detail — class names are not a stable public API and may change between releases. To keep your styles robust:
  1. Prefer the widget’s own Colors, Style, and Layout panels whenever possible — those settings are versioned and won’t break on upgrade.
  2. Use high-level structural selectors (like the widget’s outer wrapper) rather than deeply nested inner classes.
  3. Scope your rules to the widget’s container so they don’t affect the rest of the page.
  4. Test after plugin updates — if a release changes widget markup, your rules may need a light touch-up.
If you need a style the customize panel doesn’t offer, open the widget on your storefront, inspect the element, and target the class you see there. Keep the selector as simple as possible.

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Common recipes

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Match your brand font across review widgets

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Tighter spacing on mobile

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Hide a specific element you don’t want shown

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When Advanced CSS isn’t enough

For brand-wide consistency (logo, primary color, font) across every widget, use Branding & appearance — those settings are applied before widget-level styling so you don’t have to repeat rules per widget. If you need behaviour that isn’t exposed in any widget’s customize panel or the branding settings, talk to us — we’re actively expanding the customization surface.

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