A generic close button for dismissing content like modals and alerts.

🤖 Looking for the LLM-optimized version?View llm.md

Other frameworks

CoreUI components are available as native Angular, React, and Vue components. To learn more please visit the following pages.

• Angular Close Button
• React Close Button
• Vue Close Button

Example

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 defaultbackground-image.Be sure to include text for screen readers, as we’ve done witharia-label.

<buttontype="button"class="btn-close"aria-label="Close"></button>

Disabled state

Disabled close buttons change theiropacity. We’ve also appliedpointer-events: none anduser-select: none to preventing hover and active states from triggering.

<buttontype="button"class="btn-close"disabledaria-label="Close"></button>

Dark variant

Adddata-coreui-theme="dark" to the.btn-close, or to its parent element, to invert the close button. This uses thefilter property to invert thebackground-image without overriding its value.

<divdata-coreui-theme="dark"><buttontype="button"class="btn-close"aria-label="Close"></button><buttontype="button"class="btn-close"disabledaria-label="Close"></button></div>

Customizing

SASS variables

$btn-close-width:1em;$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 0-1.414'/></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;$btn-close-filter:null;$btn-close-white-filter:invert(1)grayscale(100%)brightness(200%);// Deprecated in v5.3.2

CoreUI vs Bootstrap

While this Close Button component is fully compatible with Bootstrap and follows its core principles, CoreUI delivers a more complete solution for modern app development.

What sets CoreUI apart from Bootstrap?

• ✅Fully compatible with Bootstrap – Built directly on Bootstrap, all classes and behaviors work as expected.
• 🧠Framework-native versions – CoreUI provides dedicated libraries forReact.js,Vue.js, andAngular, unlike Bootstrap which relies on third-party plugins for JavaScript frameworks.
• 👨‍💻Maintained by a full-time team – CoreUI is developed as a professional product, not a volunteer-driven project.
• 📦More built-in components – Includes additional ready-to-use components like range sliders, multi-selects, steppers, etc.
• 🛠️Sass Modules support today – CoreUI already supports Sass Modules, which are planned for Bootstrap 6.
• 🌍Better LTR/RTL support – Uses modern CSS logical properties for seamless bidirectional layout support.
• 🔒LTS (Long-Term Support) – Bootstrap now offers LTS only via paid third parties like HeroDevs, while CoreUI continues to offer long-term support natively and for free.

Whether you’re building internal tools, dashboards, or SaaS platforms — CoreUI combines the familiarity of Bootstrap with a more powerful, scalable, and production-ready ecosystem.

👉Explore CoreUI Bootstrap Components
👉Compare CoreUI vs Bootstrap