Visual Fragmentation

The design practice of organizing web page content into distinct visual groups using layout techniques such as background colors, tables, spacing, horizontal lines, and borders. Sighted users perceive these groupings at a glance and understand their roles (navigation, main content, advertisements, headers, footers) through visual context. However, blind users accessing content through screen readers encounter the page in HTML tag order, which does not preserve visual groupings — content from different visual groups may be interleaved, and group roles conveyed solely through visual appearance are lost. HTML5 semantic elements and WAI-ARIA landmarks were developed in part to address this disconnect between visual and structural page organization.