Why do all my Webflow site pages have a horizontal overlay, even after trying to hide overflowing content and using elements with 100vh?

If you're experiencing a horizontal overlay issue on all your Webflow site pages, even after trying to hide overflowing content and using elements with 100vh, there are a few possible reasons and potential solutions to consider:

1. Width exceeding viewport: Check if any of the elements on your pages have a width that exceeds the viewport width. This can cause a horizontal scrollbar to appear, resulting in a horizontal overlay. You can use the browser's inspect tool to identify which element is causing the overflow and adjust its dimensions accordingly.

2. Padding and margin settings: Excessive padding or margin values can push elements beyond the viewport width, causing horizontal overflow. Double-check your padding and margin settings for all elements, especially containers or sections that may contain content.

3. Hidden overflowing content: Make sure that your overflowing content is correctly hidden. Elements with 100vh set may still cause overflow if their overflowing content is not properly contained or hidden. You can set the overflow property of the parent element to "hidden" to ensure it doesn't extend beyond the viewport.

4. Negative margins or absolute positioning: Negative margins or absolute positioning can sometimes cause elements to extend beyond the viewport width, leading to a horizontal overlay. Review your layout and ensure that you haven't used negative margins or absolute positioning excessively.

5. Elements with fixed positioning: If you have elements with fixed positioning, they can extend beyond the viewport if their width is not explicitly defined or if they have a higher z-index than other elements. Ensure that elements with fixed positioning have an appropriate width set, and check their z-index values in case they are causing the overlay effect.

6. Browser-specific issues: It's worth testing your site in different browsers to see if the issue persists across all of them. It's possible that a particular browser may have different rendering behaviors, resulting in the horizontal overlay. In such cases, you may need to apply specific browser-specific CSS hacks or workarounds.

7. Third-party or custom code conflicts: If you have integrated any third-party scripts or custom code into your Webflow site, it's possible that they are causing conflicts or adding unwanted styles. Temporarily disabling any custom code or third-party integrations and checking if the issue persists can help identify if they are the root cause.

Remember to preview and publish your changes to see the effects in a live environment. If you're still unable to resolve the issue, I'd recommend reaching out to the Webflow support team or the community forums as they can provide specific guidance for your particular case.