--- title: "Code Challenge: Toggle With CSS | CoderPad" description: "Test your understanding of HTML & CSS by completing the tasks in this code challenge." canonical: "https://coderpad.io/blog/coding-challenges/tiny-interview-toggle-with-css/" last_modified: "2026-04-15 16:20:48" --- [Back to blog](https://coderpad.io/blog/) # Code Challenge: Toggle With CSS April 26, 2023 1 Minute Read By Umar Muhammed [Coding Challenges](https://coderpad.io/blog/coding-challenges/) For this code challenge, you have been tasked with improving the aesthetic of a web page by implementing a color mode toggle and adding animations. The goal of this challenge is to test your understanding of HTML and CSS by completing the task items: - On the top right corner of the page, you should find the moon icon. Clicking on it should toggle between light and dark mode but nothing happens at the moment. You are required to create a class titled`dark-mode`with your focus on styling the class to attain dark mode. - The`picture`element has been created in the`index.html`file. You are to add images inside the element using the html`source`element. The goal is to add two images. One of them will be rendered when`max-width`is`500px`and the other on larger viewports. We have provided some template code in the sandbox to get you started. Implement your solution in the sandbox below: ## Code challenge solution Verify your solution with the official solution in this [sandbox](https://embed.coderpad.io/sandbox?question_id=247714&use_question_button). ## Want to conduct interviews on this platform? Check out CoderPad : pick any interview question or create your own, then invite your candidate to a shared live-coding session on an IDE like this one. You even get 2 free interviews per month forever using [this registration link](https://app.coderpad.io/register?source=Tiny+Interviews)! ## Subscribe for more CoderPad insights ## Trending Articles Previous slide Next slide [Coding Challenges ## Code Challenge: Unsemantic Markup Semantic markup in HTML is a writing style for structuring your HTML applications. Improve the accessibility of a blog page in this tiny interview. Read the post](https://coderpad.io/blog/coding-challenges/code-challenge-unsemantic-markup/) [Coding Challenges ## Code Challenge: Mini Image Gallery A REST API is an interface that accepts connections via the internet, executes some business logic, and then returns a result. Test your knowledge of the REST API by improving the application in this code challenge. Read the post](https://coderpad.io/blog/coding-challenges/tiny-interview-mini-image-gallery/) [Coding Challenges ## Code Challenge: Vue Counter App Vue is a popular JavaScript library for building frontend applications and user interfaces. It builds on HTML, CSS and JavaScript and employs a declarative model for building components. Test your Vue knowledge by improving the counter application in this code challenge. Read the post](https://coderpad.io/blog/coding-challenges/tiny-interview-vue-counter-app/) [Coding Challenges ## Code Challenge: Hotel Booking Demand This two part challenge aims to test your understanding of how you can interact with data and explore it to unveil important hidden information as well as craft visualizations that spotlight various aspects of the dataset. Read the post](https://coderpad.io/blog/coding-challenges/code-challenge-hotel-booking-demand/) [Coding Challenges ## Code Challenge: Consuming API In Spring In Spring applications, consuming APIs is a common requirement for interacting with external services or fetching data from remote servers. Complete the API consumption methods for the students endpoints in this code challenge. Read the post](https://coderpad.io/blog/coding-challenges/code-challenge-consuming-api-in-spring/) [Coding Challenges ## Code Challenge: Django Models Django is a popular Python framework for building web applications. Test your knowledge of models by improving the Django application in this code challenge. Read the post](https://coderpad.io/blog/coding-challenges/code-challenge-django-models/) [Coding Challenges ## Code Challenge: Responsiveness in HTML This coding challenge tests your knowledge on responsiveness and creating interactive websites. Take a stab at the tasks in this challenge! Read the post](https://coderpad.io/blog/coding-challenges/coding-challenge-responsiveness-in-html/) [Coding Challenges ## Code Challenge: Simple Search For this code challenge, you are provided with a website that has a vulnerability. Can you fix it? Read the post](https://coderpad.io/blog/coding-challenges/coding-challenge-simple-search/) [Coding Challenges ## Code Challenge: Python Longest Subarray In a street with colored houses, you want to take a picture containing the most houses, but without any duplicate colors. Can you solve this problem involving unique values? Read the post](https://coderpad.io/blog/coding-challenges/tiny-interview-python-longest-subarray/) [Coding Challenges ## Code Challenge: React Controlled Input State management is a method of controlling communication between different parts of state and their usage, including React components. Test your knowledge on state management by improving the React app in this code challenge. Read the post](https://coderpad.io/blog/coding-challenges/tiny-interview-react-controlled-input/) [Coding Challenges ## Code Challenge: Django Search Filter Django is a popular Python framework for building web applications. Test your Django knowledge by improving the search filter application in this tiny interview. Read the post](https://coderpad.io/blog/coding-challenges/tiny-interview-django-search-filter/) [Coding Challenges ## Code Challenge: Python Unit Testing Unit tests ideally test a small unit (or rather, amount) of code. For this code challenge, we have created 20 bad functions, write testcases to break them all! Read the post](https://coderpad.io/blog/coding-challenges/tiny-interview-python-unit-testing/) ## Hire with confidence. See why engineering teams trust CoderPad to evaluate developers with realistic, AI-ready hiring workflows. [Request a demo](https://coderpad.io/sales/)