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HTML CSS Interview Questions
Use this Html css interview questions hub to practice coding and trivia leaves, then return to the master library and interview practice platform.
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HTMLCSS
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Coding challenges to start with
- Selectors & Text: Hero Title + Lead + Emphasis (Interview Warm-up)
Style a small hero header using both element and class selectors. Establish base typography on element selectors, then override specific parts with classes for emphasis and hierarchy. This checks selector targeting, cas…
Open challenge → - Warm-Up: Basic Structure
Build a valid HTML document skeleton with `<!doctype html>`, `<html>`, `<head>`, and `<body>`. Include a `<meta charset>` and `<title>` in the head, and visible content (like an `<…
Open challenge → - Box Model: Margin, Padding, Border
Build a card layout that clearly demonstrates the CSS box model. Use padding to add internal breathing room, a border to visualize the box edge, and margins to separate multiple cards. The intent is to make each layer o…
Open challenge → - Contact Form with Proper Labels
The success message should only appear after a valid submit, so native validation must be enabled and the form action should target the success section. Consider edge cases like invalid email and required fields; test a…
Open challenge → - Display & Centering: Center Inline Content
This is a horizontal alignment task, so avoid flex unless vertical alignment is explicitly required by the prompt. Use text-align for inline/inline-block content, watch edge cases like wrapping and whitespace gaps, and…
Open challenge → - Inline vs Block Elements
Demonstrate the difference between block and inline elements using pure HTML. Show that block elements start new lines while inline elements flow within text without breaking layout, and explain the difference in a shor…
Open challenge → - Links and Images
Create semantic links and images: use anchor elements with descriptive text, add target/rel when opening new tabs, and include alt text for images. This checks basic accessibility, security, and HTML best practices in o…
Open challenge → - Lists and Navigation
Build a semantic navigation bar using `nav > ul > li > a` with hash links. Use CSS `:target` to show only one section at a time without JavaScript, and ensure the Home section is visible by default when no hash…
Open challenge → - Positioning: Relative/Absolute Badge
This pattern is used in notifications, status indicators, and card metadata, so the badge should remain anchored even as content size changes. Edge cases include long titles and responsive cards; test overlap and ensure…
Open challenge → - Semantic Page Layout
Build a semantic page layout using header, nav, main, section, article, and footer. Focus on correct landmarks, heading hierarchy, and structure rather than styling or layout hacks so the document outline remains clear…
Open challenge → - SEO: Essential <head> Metadata
You’re given a simple marketing page that renders fine in the browser, but it’s missing production-grade <head> metadata. Update ONLY the <head> so the page has correct encoding, mobile-friendly viewport beh…
Open challenge → - Flexbox: Responsive Navbar
Build a responsive navbar using Flexbox. Align brand left, links center or right, and actions to the end. Use gap for spacing, keep items aligned on one row, and ensure the layout wraps cleanly on small screens without…
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Trivia questions for explanation speed
- How do CSS selectors with higher specificity override others?
Specificity determines which CSS rule takes precedence when multiple rules target the same element. Each selector type contributes a different weight, and higher specificity overrides lower ones regardless of source ord…
Open question → - What is the box model in CSS?
The CSS box model is the foundation of web layout design. Every element in a webpage is represented as a rectangular box composed of four layers: content, padding, border, and margin. Understanding this model is essenti…
Open question → - How can you add a border around an element?
Add a border with the shorthand: border: 1px solid #333;. You can also set border-width, border-style, and border-color separately for finer control. In UI validation and focus states, borders signal errors; watch layou…
Open question → - How can you make an image clickable in HTML?
You can make an image clickable by wrapping it in an anchor tag. This creates a linked image that behaves like a normal link and is accessible when you include alt text and descriptive link context. Use rel=noopener whe…
Open question → - How do you center text horizontally in CSS?
The text-align property in CSS is used to align text content horizontally within its container. Setting text-align: center aligns inline-level content such as text and inline elements to the center of their parent conta…
Open question → - How do you change the background color of a page using CSS?
The background-color property in CSS sets the background color of an element or the entire webpage. It supports multiple color formats including named colors, hexadecimal, RGB, RGBA, and HSL. When applied to the <bod…
Open question → - How do you change the size of text in CSS?
You can control the size of text using the font-size property in CSS. This property defines how large or small the text content appears on a web page and supports both absolute and relative units for flexible design sca…
Open question → - How do you link a CSS file to an HTML document?
Link an external CSS file with <link rel="stylesheet" href="..."> inside the HTML <head>. This loads the stylesheet and applies styles globally across the page. Loading CSS early avoids FOUC and improves per…
Open question → - How do you make text bold in CSS?
Make text bold with font-weight, e.g., font-weight: bold or font-weight: 700. The actual weight depends on what the font family provides. Use font-weight carefully for readability and accessibility; test variable fonts…
Open question → - What are HTML tags?
HTML tags are the basic building blocks of an HTML document. They define the structure, content, and meaning of a web page by marking elements like headings, paragraphs, images, and links.
Open question → - What are semantic HTML elements?
Semantic HTML elements clearly describe their meaning in a way that both browsers and developers can understand. Unlike generic containers such as <div> or <span>, semantic elements like <header>, <…
Open question → - What does CSS stand for?
CSS stands for Cascading Style Sheets. It controls the visual presentation of HTML, including layout, spacing, colors, typography, and responsive behavior across devices and screen sizes. In practice, CSS decisions affe…
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Complete the prep loop
After these HTML CSS Interview Questions drills, continue with frontend interview questions hub, then frontend interview preparation guides and frontend interview preparation tracks to keep your weekly plan structured.