React Callout Component Styling

Callout Styling

Learn how to customize the React Callout component with CSS classes, variables, and Sass for flexible styling and seamless integration into your design.

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CSS variables

React Callout supports CSS variables for easy customization. These variables are set via Sass but allow direct overrides in your stylesheets or inline styles.

scss

$callout-tokens: defaults(
  (
    --cui-callout-padding-x: var(--cui-spacer),
    --cui-callout-padding-y: var(--cui-spacer),
    --cui-callout-margin-x: 0,
    --cui-callout-margin-y: var(--cui-spacer),
    --cui-callout-border-width: var(--cui-border-width),
    --cui-callout-border-color: var(--cui-border-color),
    --cui-callout-border-left-width: calc(var(--cui-border-width) * 4),
    --cui-callout-border-left-color: var(--cui-callout-border-color),
    --cui-callout-border-radius: var(--cui-radius-5),
  ),
  $callout-tokens
);

How to use CSS variables

const customVars = {
  '--cui-callout-border-color': '#333',
  '--cui-callout-padding-x': '1rem',
}

return <CCallout style={customVars} />

Sass loops

Deprecated in v6.0.0

The loop that creates the deprecated .callout-{color} classes, pointing each one at the matching theme color. It lives in the opt-in coreui-legacy.css, not in coreui.css.

scss

@each $state in map.keys($theme-colors) {
  .callout-#{$state} {
    @include theme-tokens($state);
  }
}