What is a common problem associated with web overlays?

A common problem associated with web overlays is that they can block content and confuse users. Overlays often appear as pop-ups or other elements that cover existing content on a webpage, which can disrupt the user experience. Users may find it difficult to access the underlying information, leading to frustration or confusion as they try to navigate the site. This is especially problematic for individuals using assistive technologies, such as screen readers, or those who rely on keyboard navigation, as overlays may not be properly coded to integrate with these tools.

While overlays may sometimes be intended to enhance the user experience by providing additional features, such as tooltips or notifications, if they obscure critical content without clear instructions on how to dismiss them, they can hinder rather than facilitate user engagement. This leads to accessibility challenges, making it vital for designers and developers to ensure that overlays do not interfere with the primary content or the overall usability of the site.