<ul data-eligibleForWebStory="true">React Portals allow rendering components outside the main DOM tree while keeping them connected to React.They help solve UI issues like z-index conflicts and overflow problems.A practical example is building a toast notification using React Portals.To use React Portals, you can create a portal for elements like modals, tooltips, toasts, and dropdowns.Tips for effective use include utilizing document.body instead of creating a special root and avoiding overuse to maintain a clean DOM.React Portals enable components to break free from the regular DOM structure while remaining linked to React’s state and event system.They provide solutions for various real-world UI problems in a straightforward manner.