Welcome to the Coding Quiz App, an interactive web application designed to sharpen your debugging skills through engaging coding challenges. This app presents you with real-world buggy code snippets in HTML, CSS, and JavaScript, testing your ability to identify and fix common programming errors. With a clean, modern interface and three progressive difficulty levels, you can practice your problem-solving skills whether you're a beginner learning the basics or an experienced developer honing your expertise.

Built entirely with HTML, CSS, and vanilla JavaScript, this application demonstrates modern web development techniques while providing valuable programming practice. You'll race against the clock to debug code, earn points for correct fixes, and receive detailed explanations to enhance your learning. The intuitive design, responsive layout, and immediate feedback make this quiz both educational and enjoyable for programmers at any skill level.

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Key Features:

• Three difficulty levels: Easy, Medium, and Hard with 5 questions each

• Realistic code editor interface displaying buggy HTML, CSS, and JavaScript code

• Multiple-choice questions where users identify the correct fix for each bug

• Timer-based challenge with 60 seconds to complete all questions

• Score tracking and progress visualization during the quiz

• Detailed explanations after each answer showing why the fix is correct

• Hint system to provide guidance when stuck

• Results screen with performance metrics including accuracy and time taken

• Responsive design that works on all device sizes

• Clean, modern UI with gradient headers and subtle animations

Technologies Used:

• HTML5 for semantic structure and content

• CSS3 for styling, animations, and responsive design

• Vanilla JavaScript for interactive functionality

• Google Fonts for typography

• Font Awesome for icons

• CSS Grid and Flexbox for layout

• CSS Variables for consistent theming

• CSS Gradients and Shadows for visual appeal

How to Use:

• Select your preferred difficulty level from the welcome screen

• Click “Start Quiz” to begin the debugging challenge

• Read the buggy code displayed in the code editor

• Choose the correct fix from the multiple-choice options

• Review the explanation that appears after selecting an answer

• Use the “Hint” button if you need guidance on a question

• Click “Next Question” to proceed through all 5 questions

• Complete the quiz before the 60-second timer runs out

• View your final score and performance metrics on the results screen

• Use “Try Again” to restart with the same difficulty or “Back to Home” to choose a new level

Sample Screenshots of the Project

Landing Page

Sample Quiz

Correct 

Incorrect

Result

How to Run?

• Download the provided source code zip file.
• Extract the downloaded zip file.
• Open the html file and you are now ready to go!

Video Demonstration for Installation/Setup:

Conclusion:

In conclusion, the Coding Quiz App successfully combines practical debugging challenges with an engaging user experience, providing developers of all levels with a valuable tool to enhance their programming skills. By offering real-world code examples, immediate feedback with detailed explanations, and a progressive difficulty system, this application transforms learning into an interactive and rewarding process. This project demonstrates how fundamental web technologies—HTML, CSS, and JavaScript—can be leveraged to create educational tools that are both functional and visually appealing, ultimately helping programmers build the critical debugging abilities essential for success in software development.

That's it! I hope this "Coding Quiz App Using HTML, CSS and JavaScript" will assist you on your  programming journey, providing value to your current and upcoming project.

For additional tutorials and free source codes, explore our website.

Enjoy Coding :>>