React Button Component Styling

Button Styling

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

On this page

CSS variables#

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

--cui-btn-padding-x: #{$btn-padding-x};
--cui-btn-padding-y: #{$btn-padding-y};
--cui-btn-font-family: #{$btn-font-family};
@include rfs($btn-font-size, --cui-btn-font-size);
--cui-btn-font-weight: #{$btn-font-weight};
--cui-btn-line-height: #{$btn-line-height};
--cui-btn-color: #{$btn-color};
--cui-btn-bg: transparent;
--cui-btn-border-width: #{$btn-border-width};
--cui-btn-border-color: transparent;
--cui-btn-border-radius: #{$btn-border-radius};
--cui-btn-hover-border-color: transparent;
--cui-btn-box-shadow: #{$btn-box-shadow};
--cui-btn-disabled-opacity: #{$btn-disabled-opacity};
--cui-btn-focus-box-shadow: 0 0 0 #{$btn-focus-width} rgba(var(--cui-btn-focus-shadow-rgb), .5);

How to use CSS variables#

const customVars = {
  '--cui-btn-color': '#ffe484',
  '--cui-btn-bg': '#efefef',
}

return <CButton style={customVars}>{/* Button content */}</CButton>

SASS variables#

$btn-color:                   var(--cui-body-color) !default;
$btn-padding-y:               $input-btn-padding-y !default;
$btn-padding-x:               $input-btn-padding-x !default;
$btn-font-family:             $input-btn-font-family !default;
$btn-font-size:               $input-btn-font-size !default;
$btn-line-height:             $input-btn-line-height !default;
$btn-white-space:             null !default; // Set to `nowrap` to prevent text wrapping

$btn-padding-y-sm:            $input-btn-padding-y-sm !default;
$btn-padding-x-sm:            $input-btn-padding-x-sm !default;
$btn-font-size-sm:            $input-btn-font-size-sm !default;

$btn-padding-y-lg:            $input-btn-padding-y-lg !default;
$btn-padding-x-lg:            $input-btn-padding-x-lg !default;
$btn-font-size-lg:            $input-btn-font-size-lg !default;

$btn-border-width:            $input-btn-border-width !default;

$btn-font-weight:             $font-weight-normal !default;
$btn-box-shadow:              inset 0 1px 0 rgba($white, .15), 0 1px 1px rgba($black, .075) !default;
$btn-focus-width:             $input-btn-focus-width !default;
$btn-focus-box-shadow:        $input-btn-focus-box-shadow !default;
$btn-disabled-opacity:        .65 !default;
$btn-active-box-shadow:       inset 0 3px 5px rgba($black, .125) !default;

$btn-link-color:              var(--cui-link-color) !default;
$btn-link-hover-color:        var(--cui-link-hover-color) !default;
$btn-link-disabled-color:     $gray-600 !default;
$btn-link-focus-shadow-rgb:   to-rgb(color.mix(color-contrast-variables($link-color, $color-contrast-dark, $color-contrast-light, $white, $black, $min-contrast-ratio), $link-color, 15%)) !default;

// Allows for customizing button radius independently from global border radius
$btn-border-radius:           var(--cui-border-radius) !default;
$btn-border-radius-sm:        var(--cui-border-radius-sm) !default;
$btn-border-radius-lg:        var(--cui-border-radius-lg) !default;

$btn-transition:              color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out !default;

$btn-hover-bg-shade-amount:       15% !default;
$btn-hover-bg-tint-amount:        15% !default;
$btn-hover-border-shade-amount:   20% !default;
$btn-hover-border-tint-amount:    10% !default;
$btn-active-bg-shade-amount:      20% !default;
$btn-active-bg-tint-amount:       20% !default;
$btn-active-border-shade-amount:  25% !default;
$btn-active-border-tint-amount:   10% !default;