How to Add a Floating CTA Button to a React App

In a React app you can add the floating CTA button in two ways: paste the raw HTML into your public/index.html for the quickest setup, or wrap it in a React component for better integration with your app's structure.

Why Add a CTA Button to React?

React apps are single-page applications where traditional page-level elements get lost in component trees. A floating CTA button rendered at the root level guarantees visibility regardless of which route the user is on. For SaaS dashboards, marketing sites, and web apps built with React, it provides a persistent touchpoint for signup, upgrade, or support actions.

Step-by-Step Instructions

Design your CTA button

Open the CTA Button Generator and customize your button using the visual editor. Pick colors, position, animation, hover effects, icon, and font. The live preview updates in real time so you see exactly what your visitors will get.

Export your code

When you are happy with the design, click "Get Code" to export a clean HTML + CSS snippet. The code is lightweight, has zero dependencies, and works on any website.

Option A: Paste into index.html

Open public/index.html (or index.html in your project root if using Vite). Paste the exported code just before the closing </body> tag. This is the fastest approach and works immediately.

    <!-- Your CTA button code goes here -->
  </body>
</html>

Option B: Create a React component

Create a new file like CtaButton.tsx. Paste the HTML into a component using dangerouslySetInnerHTML or convert it to JSX. Then render it in your App component or layout. Move the CSS into a separate .css file or use inline styles.

export function CtaButton() {
  return (
    <>
      <style>{`/* paste your CTA styles here */`}</style>
      {/* paste your CTA HTML here, converted to JSX */}
    </>
  );
}

Render and verify

If using Option B, import and render <CtaButton /> in your root layout or App component. Start your dev server and confirm the button appears.

Best Practices for React

If you use the component approach, render the CTA button in your root App component so it persists across all routes.
Convert the HTML to proper JSX (className instead of class, camelCase style properties) to avoid React warnings.
Use the index.html approach for quick experiments, and switch to a component when you need conditional rendering or props.
Wrap styles in a CSS module or styled-component to prevent class name collisions in larger React projects.

Ready to build your button?

Design it visually, export clean code, and paste it into your site.

Open the Generator

Frequently Asked Questions

Should I use the index.html approach or a React component?

For a quick, low-effort setup, use index.html. If you want to conditionally render the button or pass props to it, wrap it in a React component.

Does it work with Create React App, Vite, and other setups?

Yes. The code is plain HTML + CSS and works regardless of your build tool or bundler.

How do I conditionally show the button on certain routes?

Wrap the CtaButton component with route-based logic using React Router's useLocation hook to check the current path before rendering.

Will the button cause hydration mismatches?

No. The button is static HTML + CSS with no dynamic state, so it renders identically on server and client if you're using SSR.

How to Add a CTA Button to React