How to fix the issue when the font size setting is not working correctly.

If you encounter issues while adjusting the font size, you can try the following solutions:

1. Make sure you are using the correct CSS properties and units to set the font size. For example, use the font-size property and specify the appropriate unit (such as px, em, or rem).
2. Check if there are any other CSS rules overriding your font-size setting. View the computed styles of the element in the developer tools to make sure no other CSS rules are affecting the font size.
3. Check the HTML structure and CSS cascade order. Sometimes, the font size of a parent element can affect the font size of a child element. Make sure your HTML structure and CSS cascade order are correct to ensure your font size settings take effect.
4. Make sure your CSS file is properly linked. If your CSS file is not linked correctly to your HTML file, the font size settings will not take effect. Ensure that the path and file name of the CSS file are correct and properly linked in the HTML file.
5. Clear the browser cache. Sometimes, the browser caches CSS files, causing new font size settings to not take effect. Try clearing the browser cache and then reloading the page to see if it resolves the issue.

If the above methods have been attempted and the issue still remains unresolved, it may be necessary to gather more contextual information for further investigation.