Q1. What is utility-first CSS and what are its benefits?
Utility-first means composing small, single-purpose classes directly in markup instead of writing semantic class names and separate stylesheets. In Tailwind, a class list...
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Q2. What is the CSS box model?
Every element is a box made of four layers: content, padding, border and margin. By default width applies to the content box, so padding and border are added on top (cont...
Q3. How does CSS specificity work and how do you resolve conflicts?
Specificity ranks selectors as (inline, IDs, classes/attributes/pseudo-classes, elements/pseudo-elements). Higher wins; equal specificity falls back to source order (late...
Q4. What is the critical rendering path and how do you optimise it?
The critical rendering path is the sequence the browser follows to turn HTML, CSS and JavaScript into pixels: parse HTML into the DOM, parse CSS into the CSSOM, combine t...
Q5. What is the difference between relative, absolute, fixed and sticky positioning?
- static: default, follows normal flow. - relative: stays in flow but offsets from its normal position; also establishes a containing block for absolutely positioned desc...
Q6. What are arbitrary values and when should you use them?
When a design needs a one-off value that is not in the scale, arbitrary value syntax accepts raw CSS inside square brackets: w-[327px], top-[117px], bg-[#1da1f2], grid-co...
Q7. What is CSS?
CSS stands for Cascading Style Sheets. CSS is used to define styles for web pages, including the design, layout and variations in display for different devices and screen...
Q8. What are the possible ways to apply CSS styles to a web page?
There are three standard methods to apply CSS styling to an HTML document: ### 1. External Stylesheet (Recommended Standard): Link an external `.css` file in the `` using...
Q9. What are some new features in CSS3?
CSS3 modularized the styling specification, introducing transformative layout engines and dynamic visual capabilities: ### Breakthrough Features in CSS3: 1. **Modern Layo...
Q10. What are the CSS selectors?
CSS selectors declare which HTML elements a set of CSS rules applies to: ### Selector Categories: 1. **Universal Selector (`*`)**: Matches every DOM element. 2. **Type / ...