Know Your Language

HTML, CSS, and JavaScript are the three fundamental technologies used to create and develop websites. They are often used together to create beautiful and interactive web pages that are accessible and easy to use. In this article, we will discuss the Top 10 Best HTML CSS JavaScript Projects For Beginners to understand better how we can implement these languages together and create some useful tools.

HTML (Hypertext Markup Language) is the standard markup language used to create web pages. HTML is used to define the structure and layout of a web page, including headings, paragraphs, images, and links.

CSS (Cascading Style Sheets) is a styling language used to control the presentation of web pages. It is used to define the look and feel of a web page, including colors, fonts, and layout.

JavaScript is a programming language to develop network-centric applications to create dynamic and interactive web pages. It is used to add functionality to web pages, such as form validation, image sliders, and interactive maps. JavaScript can also be used to create web applications such as games and online tools. Students and working professionals who want to become exceptional software engineers, especially those in the web development field, MUST learn Javascript.

How To Choose The Best Project To Learn Faster

Numerous websites employ the lightweight, object-oriented programming language JavaScript to script web pages. It is an interpreted, fully-fledged programming language that allows for dynamic interactivity on websites when used with HTML content. It was made available so that users of the Netscape Navigator browser can add programs to web pages.

Since then, it has been accepted by every other graphical web browser. JavaScript enables users to build interactive, real-time online apps without constantly refreshing the page. On a typical website, JavaScript is utilized to offer various forms of simplicity and interactivity. We are going to create projects that use strings, numbers, boolean functions, methods, objects, arrays, etc. You will also learn about events, assignment operators, var, let, const, and variables. And data kinds etc. So lets have a look at the Top 10 Best HTML CSS JavaScript Projects For Beginners

Top 10 Best HTML CSS JavaScript Projects For Beginners

1. JavaScript Calculator

A JavaScript calculator is a web application that allows users to perform mathematical calculations in a browser. It can be built using HTML, CSS, and JavaScript.

To create a simple calculator, you will need to create an HTML page with input fields for numbers and buttons for the calculator’s functions (such as addition, subtraction, multiplication, and division). You can use the <input> element to create the number fields and the <button> element to create the function buttons.

In the CSS, you can style the calculator’s layout and design. For example, you can set the background color, font, and size of the calculator.

Once the calculator is complete, it can be tested by inputting numbers and clicking the function buttons to ensure that the calculations are performed correctly.

Here is an example of a simple calculator HTML structure:

<div id="calculator">
  <input type="text" id="display">
  <br>
  <button class="number">1</button>
  <button class="number">2</button>
  <button class="number">3</button>
  <button class="operator">+</button>
  <br>
  <button class="number">4</button>
  <button class="number">5</button>
  <button class="number">6</button>
  <button class="operator">-</button>
  <br>
  <button class="number">7</button>
  <button class="number">8</button>
  <button class="number">9</button>
  <button class="operator">*</button>
  <br>
  <button class="clear">C</button>
  <button class="number">0</button>
  <button class="equal">=</button>
  <button class="operator">/</button>
</div>

In JavaScript, you can add event listeners to the function buttons that perform the calculations when clicked. You can also add validation to check that the user has entered valid numbers before performing the calculations.

let display = document.getElementById("display");
let numbers = document.querySelectorAll(".number");
let operators = document.querySelectorAll(".operator");
let equal = document.querySelector(".equal");
let clear = document.querySelector(".clear");
for (let i = 0; i < numbers.length; i++) {
  numbers[i].addEventListener("click", function (e) {
    let number = e.target.innerText;
    display.value += number;
  });
}
for (let i = 0; i < operators.length; i++) {
  operators[i].addEventListener("click", function (e) {
    let operator = e.target.innerText;
    display.value += operator;
  });
}
equal.addEventListener("click", function () {
  let result = eval(display.value);
  display.value = result;
});
clear.addEventListener("click", function () {
  display.value = "";
});

This is just a basic example, but you can build on this and add more functionality, such as handling errors, formatting numbers, and adding more advanced operations.

Key Concepts Covered:

• JS Syntax
• JS Comments
• JS Variables
• CSS Borders
• CSS Margins

2. JavaScript Form Validation

JavaScript form validation is the process of checking that user input in a web form meets certain criteria before it is submitted to the server. This can be used to ensure that required fields are filled out, that input is in the correct format, and that data is within a specific range.

To perform form validation using JavaScript, you can add an event listener to the form’s submit button that runs a validation function. The function can check the input in each field of the form and return an error message if the input is invalid.

Here is an example of a simple validation function that checks if a required text field is filled out:

function validateForm() {
  let name = document.forms["myForm"]["name"].value;
  if (name == "") {
    alert("Name must be filled out");
    return false;
  }
  return true;
}

In the above example, the function retrieves the value of the “name” field from the form and checks if it is an empty string. If it is, the function displays an error message and returns false. If the input is valid, the function returns true.

You can also use regular expressions to check for specific input patterns, like validating email addresses.

function validateEmail() {
  let email = document.forms["myForm"]["email"].value;
  let pattern = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;
  if (!pattern.test(email)) {
    alert("Invalid email address");
    return false;
  }
  return true;
}

You can also use HTML5 validation using pattern attributes, required attributes, and more.

You can call the validation function on the form submission in the HTML form.

<form name="myForm" onsubmit="return validateForm() && validateEmail()">

It’s worth noting that JavaScript form validation is client-side, meaning that it runs on the user’s browser so that it can be bypassed. Server-side validation should also be used to protect against malicious input.

The four input boxes on your straightforward signup form will be the username, email, password, and confirm password. The form will display errors when you click the sign-up button without filling anything out or when you provide data in the wrong format.

Key Concepts Covered:

• JS Let
• JS Const
• JS Operators
• CSS Borders
• CSS Padding

3. Happy Bouncing Balls

Creating a “Happy Bouncing Balls” animation using HTML, CSS, and JavaScript is a fun and interactive way to practice your web development skills.

To create the animation, you will need to use HTML to create the balls and container, CSS to style the balls, and JavaScript to make the balls move and bounce.

Here is an example of how you can create the HTML structure for the animation:

<div id="container">
  <div class="ball"></div>
  <div class="ball"></div>
  <div class="ball"></div>
</div>

You can use CSS to style the balls and give them a random position and size within the container. Here’s an example of how you can do this:

.ball {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: #F00;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

In JavaScript, you can use animation techniques like setInterval or requestAnimationFrame to move the balls and make them bounce. Here’s an example of how you can use setInterval to move the balls and make them bounce:

let balls = document.querySelectorAll('.ball');
let xSpeed = 5;
let ySpeed = 5;
setInterval(() => {
  for(let i = 0; i < balls.length; i++) {
    let ball = balls[i];
    let x = parseInt(ball.style.left);
    let y = parseInt(ball.style.top);
    // check for collision with the container boundaries
    if (x + 50 > 500 || x < 0) {
        xSpeed = -xSpeed;
    }
    if (y + 50 > 500 || y < 0) {
        ySpeed = -ySpeed;
    }
    // update the ball's position
    ball.style.left = x + xSpeed + 'px';
    ball.style.top = y + ySpeed + 'px';
  }
}, 10);

In the above example, the JavaScript code uses the setInterval function to call a function that updates the position of the balls every 10 milliseconds. The function checks if the ball collides with the boundaries of the container, and if it is, it changes the ball’s direction by reversing the speed.

You can also use CSS animations to animate the balls and make them move, which is more efficient than using JavaScript.

You can also add more features to this project, like changing the color of the balls on collision, adding more balls, and so on. The possibilities are endless, have fun creating your own Happy Bouncing Balls animation!

Key Concepts Covered:

• JS Comments
• JS Variables
• CSS Fonts
• CSS Icons
• CSS Links

4. BMI Calculator

For all the exercise enthusiasts out there, you may design a BMI calculator. A Body Mass Index (BMI) calculator is a web application that allows users to calculate their BMI based on their weight and height. It can be built using HTML, CSS, and JavaScript.

To create a BMI calculator, you will need to create an HTML page with input fields for weight and height and a button to calculate the BMI. You can use the <input> element to create the number fields and the <button> element to create the calculate button.

In the CSS, you can style the calculator’s layout and design. For example, you can set the BMI calculator’s background color, font, and size.

In JavaScript, you can add an event listener to the calculate button that performs the calculation when clicked. You can also add validation to check that the user has entered valid numbers before performing the calculation.

Here’s an example of a basic HTML structure for the calculator:

<div id="calculator">
  <form>
    <label for="weight">Weight (kg):</label>
    <input type="number" id="weight" name="weight" step="0.1">
    <br>
    <label for="height">Height (m):</label>
    <input type="number" id="height" name="height" step="0.01">
    <br>
    <button id="calculate-button">Calculate</button>
    <br>
    <p id="bmi-result"></p>
  </form>
</div>

In javascript, you can use the event listener to perform the calculation and update the result when the button is clicked

let calculateButton = document.getElementById("calculate-button");
let bmiResult = document.getElementById("bmi-result");
calculateButton.addEventListener("click", function (e) {
  e.preventDefault();
  let weight = document.getElementById("weight").value;
  let height = document.getElementById("height").value;
  let bmi = weight / (height * height);
  bmiResult.innerHTML = "Your BMI is: " + bmi.toFixed(2);
});

In the above example, the JavaScript code uses the addEventListener method to listen for a click event on the calculate button. When the button is clicked, the code retrieves the values of the weight and height fields, calculates the BMI using the formula, and displays the result in an <p> element.

You can also add more features to this project, like displaying the BMI category, adding an option for imperial units, etc.

Key Concepts Covered:

• JS Syntax
• JS Comments
• JS Variables
• CSS Borders
• CSS Margins

5. Grocery List

A grocery list is a wonderful tool that allows you to keep a list of the things you need to buy; all you must do is add the items. Additionally, you have the option of removing any unnecessary things. This project uses JavaScript to build a grocery list that can accept items and save them to local storage. The top container in the project notifies the user to add an item with an “alert” message if they attempt to submit a blank item. The top container notifies the user with a “success” message if the user adds an item successfully. Every time an item is added, it is both saved to the user’s local storage and displayed in the DOM.

Here is an example of a basic HTML structure for the grocery list application:

<div id="grocery-list">
  <form id="add-item-form">
    <input type="text" id="new-item" placeholder="Add a new item">
    <button type="submit">Add</button>
  </form>
  <ul id="list">
  </ul>
</div>

In javascript, you can use the event listener to add, delete and complete the item.

let form = document.getElementById("add-item-form");
let input = document.getElementById("new-item");
let list = document.getElementById("list");
form.addEventListener("submit", function (e) {
  e.preventDefault();
  let newItem = input.value;
  let li = document.createElement("li");
  li.innerHTML = newItem + '<button class="delete-button">Delete</button><button class="complete-button">Complete</button>';
  list.appendChild(li);
  input.value = "";
  let deleteButtons = document.querySelectorAll(".delete-button");
  for (let i = 0; i < deleteButtons.length; i++) {
    deleteButtons[i].addEventListener("click", function (e) {
      let li = e.target.parentElement;
      list.removeChild(li);
    });
  }
  let completeButtons = document.querySelectorAll(".complete-button");
  for (let i = 0; i < completeButtons.length; i++) {
    completeButtons[i].addEventListener("click", function (e) {
      let li = e.target.parentElement;
      li.style.textDecoration = "line-through";
    });
  }
});

In the above example, the JavaScript code uses the addEventListener method to listen for a submitted event on the form. When the form is submitted, the code creates a new <li> element with the value of the input and appends it to the list. Also, it adds event listeners to the delete and completes buttons that remove the item and marks it as complete, respectively.

You can also add more features to this project, like adding an option to edit an item, show the number of items left, save the list to local storage, and so on.

Key Concepts Covered:

• JS Comments
• JS Variables
• CSS Fonts
• CSS Icons
• CSS Links

6. Timer

It is more challenging than it seems to construct a basic timer. It would seem straightforward to use the same set Interval technique as in the digital clock project to display the correct time. It turns out that, in this instance, the method is ineffective. For this project, we create variables to store different time-related data, such as when the time started, when it stopped, and how long the time was halted. Without these variables and the calculations we perform with them, our timer would be unable to show the time that has passed.

To create a Timer application, you will need to create an HTML page with an input field for setting the timer, buttons for starting, pausing, and resetting the timer, and a display for showing the remaining time. You can use the <input> element to create the input field, <button> elements for a start, pause, and reset buttons, and a <div> or <p> element to display the remaining time.

JavaScript will be applied to use the setInterval function to decrement the remaining time and update the display every second. You can also add event listeners to the start, pause and reset buttons that run functions to start, pause and reset the timer.

Basic HTML structure for the timer application:

<div id="timer">
  <input type="number" id="time-input" placeholder="Enter time in seconds">
  <button id="start-button">Start</button>
  <button id="pause-button">Pause</button>
  <button id="reset-button">Reset</button>
  <div id="time-left"></div>
</div>

In javascript, you can use the event listener to start, pause and reset the timer.

let startButton = document.getElementById("start-button");
let pauseButton = document.getElementById("pause-button");
let resetButton = document.getElementById("reset-button");
let timeLeft = document.getElementById("time-left");
let timerId;
startButton.addEventListener("click", startTimer);
pauseButton.addEventListener("click", pauseTimer);
reset

Key Concepts Covered:

• JS Syntax
• JS Comments
• JS Variables
• CSS Borders
• CSS Margins

7. Tip Calculator

You won’t need to look around the table to figure out how much you should tip if you use this tip calculator. To assist you in calculating how much to tip at restaurants when necessary, this tip calculator can be created using JavaScript, HTML, and CSS. Although the design may appear straightforward, it is rather challenging to implement.

By using HTML, we can provide the appropriate structure, input options, and submit button. We are embellishing our framework using CSS by adding colors, the necessary font, etc. The taken input is processed in the JavaScript portion, and after calculation, the corresponding output is printed.

Basic HTML structure for the tip calculator:

<div id="calculator">
  <form>
    <label for="bill-amount">Bill amount:</label>
    <input type="number" id="bill-amount" name="bill-amount" step="0.01">
    <br>
    <label for="tip-percentage">Tip Percentage:</label>
    <input type="number" id="tip-percentage" name="tip-percentage" step="0.01">
    <br>
    <button id="calculate-button">Calculate</button>
    <br>
    <p id="tip-result"></p>
  </form>
</div>

JavaScript uses the event listener to calculate and update the result when the button is clicked.

let calculateButton = document.getElementById("calculate-button");
let tipResult = document.getElementById("tip-result");
calculateButton.addEventListener("click", function (e) {
  e.preventDefault();
  let billAmount = document.getElementById("bill-amount").value;
  let tipPercentage = document.getElementById("tip-percentage").value;
  let tip = (billAmount * tipPercentage) / 100;
  tipResult.innerHTML = "Tip Amount: $" + tip.toFixed(2);
});

We have used the addEventListener method in the above JavaScript code to listen for a click event on the calculate button. When the button is clicked, the code retrieves the values of the bill amount and tip percentage fields, calculates the tip using the formula, and displays the result in an <p> element.

You can also add more features to this Tip calculator project, like adding an option for rounding the tip amount, adding an option for splitting the bill, and so on.

Key Concepts Covered:

• JS Let
• JS Const
• JS Operators
• CSS Borders
• CSS Padding

8. Random Quote Generator

We can help if you’re seeking some motivation. In this project, you’ll create an app that randomly displays well-known quotes whenever a button is clicked. To complete this project, you must be familiar with basic JavaScript syntaxes like variables, loops, and object literals. You may effectively and enjoyably practice your foundational JavaScript abilities with this project. You can utilize the little interactive portfolio component to show your understanding of JavaScript.

Basic HTML structure for the Quote Generator:

<div id="quote-generator">
  <div id="quote"></div>
  <button id="generate-button">Generate</button>
</div>

With JavaScript, you can create an array of quotes and use the “Math.floor(Math.random() * quotes.length)” function to choose a random quote from the array. You can also add an event listener to the generate button that runs a function to display a new quote every time it is clicked.

let generateButton = document.getElementById("generate-button");
let quote = document.getElementById("quote");
let quotes = [
  "The greatest glory in living lies not in never falling, but in rising every time we fall.",
  "The way to get started is to quit talking and begin doing.",
  "Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do.",
  "If life were predictable it would cease to be life, and be without flavor.",
  "If you look at what you have in life, you’ll always have more. If you look at what you don’t have in life, you’ll never have enough.",
];
generateButton.addEventListener("click", function (e) {
  let randomQuote = quotes[Math.floor(Math.random() * quotes.length)];
  quote.innerHTML = randomQuote;
});

You can also add more features to this project, like adding an option to tweet the quote, adding more quotes to the array, displaying the quote author, and so on.

Key Concepts Covered:

• JS Comments
• JS Variables
• CSS Fonts
• CSS Icons
• CSS Links

9. Hex Color Application

Next in the list of the Top 10 Best HTML CSS JavaScript Projects For Beginnersis Hex Color Application. Using this straightforward hex color application, you may make the web a little more attractive. This program allows you to change the background color and display the color’s hexadecimal value with the click of a single button. Working on this project will teach you how to use click to link a function to a button. Learning this would be helpful because buttons are a common feature of modern online applications.

Basic HTML structure for the Hex Color Application:

<div id="color-application">
  <div id="color"></div>
  <button id="generate-button">Generate</button>
</div>

In JavaScript, you can use the Math.floor(Math.random() * 16777216).toString(16) function to generate a random hex color code. You can also add an event listener to the generate button that runs a function to display a new color code every time it is clicked.

let generateButton = document.getElementById("generate-button");
let color = document.getElementById("color");
generateButton.addEventListener("click", function (e) {
  let randomColor = "#" + Math.floor(Math.random() * 16777216).toString(16);
  color.innerHTML = randomColor;
  color.style.backgroundColor = randomColor;
});

When the button is clicked, the code generates a random number within the range of hex color codes and converts it to a hex string. The color code is then displayed in the HTML element with the id “color”, and the background color of the element is set to the current color code.

You can also add more features to this project, like adding an option to copy the color code to the clipboard, and displaying the color code in different formats like RGB, HSL, etc.

Key Concepts Covered:

• JS Syntax
• JS Comments
• JS Variables
• CSS Borders
• CSS Margins

10. Build A Clock Using JavaScript

You may be on a website or using a web application that uses JavaScript code and contains a self-updating time component, such as a clock. So the last project in the list list of Top 10 Best HTML CSS JavaScript Projects For Beginners is building a clock.The logic is to run the same procedure every second to obtain the time using the date object and then re-render the time on the browser using that updated time.

To do this project, you will need to create an HTML page with a display to show the current time and use JavaScript to update the display every second.

You can use the Date() object to get the current time and the setInterval() function to update the display every second.

Basic HTML structure for the Clock:

<div id="clock">
  <p id="time"></p>
</div>

In javascript you can use the setInterval to update the time every second.

let time = document.getElementById("time");
function updateTime() {
  let date = new Date();
  let hours = date.getHours();
  let minutes = date.getMinutes();
  let seconds = date.getSeconds();
  time.innerHTML = `${hours}:${minutes}:${seconds}`;
}
setInterval(updateTime, 1000);

In the above example, the JavaScript code uses the setInterval function to call the updateTime() function every 1000 milliseconds (1 second). The updateTime() function uses the Date() object to get the current time, and updates the innerHTML of the element with the id “time” to show the current time in the format of hours:minutes:seconds.

You can also add more features to this project like adding an option to show the date, adding an alarm feature, and so on.

Key Concepts Covered:

• JS Let
• JS Const
• JS Operators
• CSS Borders
• CSS Padding

Keep These Points in Mind While Coding

Top 10 Best HTML CSS JavaScript Projects For Beginners

• Parameters Are Missing in Function Calls
• Taking care of the “this” Reference
• Parameters Are Missing in Function Calls
• Incorrect Use of Equality Operators

Recommendations To Learn More

Below are the websites and YouTube channels that will help you learn the Top 10 Best HTML CSS JavaScript Projects For Beginners:

Websites:

• W3schools
• Tutorialspoint

YouTube Channels:

• Traversy Media
• JavaScript King

Cisco Ramon

Cisco Ramon is an American software engineer who has experience in several popular and commercially successful programming languages and development tools. He has been writing content since last 5 years. He is a Senior Manager at Rude Labs Pvt. Ltd.