HTML5 and CSS Questions and Answers Rated A+

HTML5 and CSS Questions and Answers Rated A+ What does a CSS preprocessor do? A CSS preprocessor extends CSS with variables, nested rules, and functions, allowing for more organized and maintainable stylesheets. How can you make an element responsive to different screen sizes? You can make an element responsive by using relative units like percentages, `vw`, or `vh`, and by employing media queries. What is a CSS framework? A CSS framework is a pre-prepared library that provides a structure for styling websites, including grid systems and UI components. How can you hide an element visually while keeping it accessible for screen readers? You can hide an element visually by using `visibility: hidden;`, which keeps it in the document flow but not visible. 2 What is the difference between the `absolute` and `relative` positioning in CSS? `Absolute` positioning removes an element from the document flow and positions it relative to its closest positioned ancestor, while `relative` positioning keeps it in the flow but offsets it from its original position. What role does the `@media` rule play in CSS? The `@media` rule is used to apply styles conditionally based on the characteristics of the device, such as width, height, and resolution. How can you add spacing between elements without using margins? You can add spacing between elements by using padding within the elements themselves or by applying a `gap` property in flex or grid layouts. What does the `calc()` function do in CSS? The `calc()` function allows you to perform calculations to set CSS property values dynamically, combining different units. What is a CSS sprite and its benefit? 3 A CSS sprite combines multiple images into one file to reduce HTTP requests, improving load time and performance. How can you create a vertical layout using Flexbox? You can create a vertical layout by setting