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HTML · CSS · JS
200 interview questions — HTML, CSS, JavaScript & React
BEGINNER
INTERMEDIATE
ADVANCED
🧱
HTML
50
🎨
CSS
50
⚡
JavaScript
50
⚛️
React
50
50 questions
·
5 categories
Basics
(10)
▾
BEG
What is HTML?
▾
BEG
What is a DOCTYPE declaration?
▾
BEG
What is the difference between block-level and inline elements?
▾
BEG
What are HTML attributes?
▾
BEG
What are void (self-closing) elements?
▾
BEG
What is the difference between id and class?
▾
BEG
How do you create a hyperlink in HTML?
▾
BEG
What is the alt attribute on images?
▾
BEG
What is the difference between <div> and <span>?
▾
BEG
How do you include CSS and JavaScript in HTML?
▾
Semantic
(10)
▾
BEG
What is semantic HTML and why does it matter?
▾
BEG
What is the <header> element?
▾
BEG
What is the <nav> element?
▾
BEG
What is the <main> element?
▾
BEG
What is the difference between <article> and <section>?
▾
BEG
What is the <aside> element?
▾
BEG
What is the <footer> element?
▾
BEG
What are <figure> and <figcaption>?
▾
INT
What is the <time> element?
▾
INT
What are <details> and <summary> elements?
▾
Forms
(10)
▾
BEG
How do you create a form in HTML?
▾
BEG
What are the different HTML input types?
▾
BEG
What is the <label> element and why is it important?
▾
BEG
What is the difference between GET and POST form methods?
▾
BEG
How do you create a dropdown select in HTML?
▾
BEG
How do you create radio buttons?
▾
BEG
How do you create checkboxes?
▾
INT
What are the required, placeholder, and pattern attributes?
▾
INT
What is the <textarea> element?
▾
INT
What is the <fieldset> and <legend> elements?
▾
Accessibility
(10)
▾
BEG
What is web accessibility (a11y)?
▾
BEG
What is ARIA and when should you use it?
▾
INT
What is the difference between aria-label and aria-labelledby?
▾
INT
What is the tabindex attribute?
▾
BEG
What is a skip navigation link?
▾
INT
What is aria-hidden?
▾
INT
What are landmark roles in HTML?
▾
INT
What is the role attribute?
▾
BEG
What is color contrast in accessibility?
▾
INT
What is focus management and why does it matter?
▾
Media & Meta
(10)
▾
BEG
What is the charset meta tag?
▾
BEG
What is the viewport meta tag?
▾
INT
What are Open Graph meta tags?
▾
BEG
How do you embed a video in HTML5?
▾
BEG
How do you embed audio in HTML5?
▾
INT
What is the <picture> element and srcset?
▾
INT
What are data-* attributes?
▾
INT
What is the difference between <script defer> and <script async>?
▾
INT
What is the <template> element?
▾
INT
What are <link rel="preload">, <link rel="prefetch">, and <link rel="preconnect">?
▾