Provide an option to dismiss or close a component with .btn-close. Default styling is limited, but highly customizable. Modify the Sass variables to replace the default background-image. Be sure to include text for screen readers, as we’ve done with aria-label.
<button type="button" class="btn-close" aria-label="Close"></button>
Disabled close buttons change their opacity. We’ve also applied pointer-events: none and user-select: none to preventing hover and active states from triggering.
<button type="button" class="btn-close" disabled aria-label="Close"></button>
.btn-close-white class is deprecated. Instead, use data-bs-theme="dark" to change the color mode of the close button. Add data-bs-theme="dark" to the .btn-close, or to its parent element, to invert the close button. This uses the filter property to invert the background-image without overriding its value.
<div data-bs-theme="dark"> <button type="button" class="btn-close" aria-label="Close"></button> <button type="button" class="btn-close" disabled aria-label="Close"></button> </div>
As part of Bootstrap’s evolving CSS variables approach, close button now uses local CSS variables on .btn-close for enhanced real-time customization. Values for the CSS variables are set via Sass, so Sass customization is still supported, too.
--#{$prefix}btn-close-color: #{$btn-close-color};
--#{$prefix}btn-close-bg: #{ escape-svg($btn-close-bg) };
--#{$prefix}btn-close-opacity: #{$btn-close-opacity};
--#{$prefix}btn-close-hover-opacity: #{$btn-close-hover-opacity};
--#{$prefix}btn-close-focus-shadow: #{$btn-close-focus-shadow};
--#{$prefix}btn-close-focus-opacity: #{$btn-close-focus-opacity};
--#{$prefix}btn-close-disabled-opacity: #{$btn-close-disabled-opacity};
--#{$prefix}btn-close-white-filter: #{$btn-close-white-filter};
$btn-close-width: 1em;
$btn-close-height: $btn-close-width;
$btn-close-padding-x: .25em;
$btn-close-padding-y: $btn-close-padding-x;
$btn-close-color: $black;
$btn-close-bg: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='#{$btn-close-color}'><path d='M.293.293a1 1 0 0 1 1.414 0L8 6.586 14.293.293a1 1 0 1 1 1.414 1.414L9.414 8l6.293 6.293a1 1 0 0 1-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 0 1-1.414-1.414L6.586 8 .293 1.707a1 1 0 0 1 0-1.414z'/></svg>");
$btn-close-focus-shadow: $focus-ring-box-shadow;
$btn-close-opacity: .5;
$btn-close-hover-opacity: .75;
$btn-close-focus-opacity: 1;
$btn-close-disabled-opacity: .25;
$btn-close-white-filter: invert(1) grayscale(100%) brightness(200%);
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Code licensed under the MIT License.
Documentation licensed under the Creative Commons Attribution License v3.0.
https://getbootstrap.com/docs/5.3/components/close-button/