Text Reflow

The ability of text content to rearrange and wrap within its container when the viewport is resized or text is zoomed, so that users can read without horizontal scrolling. Text reflow is essential for users with low vision who magnify content, as well as for mobile users on small screens. WCAG 2.1 Success Criterion 1.4.10 (Reflow) requires that content can be presented at 400% zoom without loss of information or requiring two-dimensional scrolling.