If your app's UI is not displaying correctly, check for CSS issues, inspect the HTML structure, and verify that all assets are loading properly.

When an app's user interface (UI) does not display correctly, it can lead to poor user experiences and functionality issues. To troubleshoot UI problems effectively, start by examining the CSS styles applied to your app. Ensure that there are no conflicting styles or errors in your stylesheets that could be causing the display issues. Utilize browser developer tools to inspect elements and view the applied styles. Check for issues such as missing styles, incorrect selectors, or overridden properties. If your CSS files are not loading as expected, confirm that the links to your stylesheets are correct in the HTML. Next, inspect the HTML structure of your app. Look for unclosed tags, misplaced elements, or incorrect nesting that could affect how the page is rendered. Use the browser's inspector tool to visualize the DOM and verify that the structure matches your intended design. Ensure that all assets, such as images and fonts, are loading properly. If an asset fails to load, it may impact the layout of the UI. Check the console for error messages related to missing resources or incorrect paths. Test your app in different browsers and devices, as display issues can vary depending on the environment. If you’re using a front-end framework, consult its documentation for specific guidelines on rendering components and handling layout issues. Consider responsive design principles to ensure your app displays correctly on various screen sizes. If necessary, create a minimal reproducible example to isolate the issue and simplify debugging. By following these steps, you can effectively identify and resolve UI display issues in your application.