Instruction: Discuss methods of using CSS to enhance accessibility on the web.
Context: This question tests the candidate's awareness of accessibility principles and their ability to apply them through CSS.
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First, let's talk about the use of CSS to manage the visual presentation of content. By using relative font sizes, like 'em' or 'rem', instead of absolute units like 'pixels', we enable users to adjust text sizes based on their needs without breaking the page layout. This is particularly beneficial for users with visual impairments who may require larger text sizes to read comfortably.
Another method involves the use of sufficient contrast ratios between text and its background. CSS allows us to ensure that text is easily readable for users with color vision deficiencies. By adhering to WCAG guidelines for contrast ratios, we can use CSS to specify text and background colors that provide enough contrast, making...