Common mistakes in accessibility often stem from overlooking diverse user needs. A significant oversight is the absence of descriptive alt text for images, rendering visual content inaccessible to screen reader users. Another frequent error involves insufficient color contrast for text and interactive elements, making content unreadable for individuals with visual impairments. Furthermore, many sites fail to provide robust keyboard navigation and visible focus indicators, hindering access for those unable to use a mouse. Lastly, neglecting captions or transcripts for multimedia and failing to use semantic HTML structures profoundly impacts how assistive technologies interpret and convey information, creating barriers rather than bridges for all users. More details: https://stackoverflow.com/users/32373041/marie-wagner