Heartfelt Timer App with HTML/CSS/JS Only!

#webdev #html #css #javascript

It’s made of glass and has a smooth bluish background.

It’s very simple and SUPER fun to make, even if you’re just starting out with coding!

Ready? Let’s get started! 🏊‍♂️

🧱 HTML

Our HTML code is the blueprint of a house.

It tells the browser what parts to include, like input boxes for minutes and seconds, and buttons for controlling the timer.

<!DOCTYPE html>
<html>
<head>
    <title>Beautiful Glass Timer App</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <div class="glass-container">
        <input type="number" id="minutesInput" placeholder="Minutes">
        <input type="number" id="secondsInput" placeholder="Seconds">
        <div class="button-container">
            <button class="glass-button" onclick="incrementTime('minutes', 1)">↑</button>
            <button class="glass-button" onclick="decrementTime('minutes', 1)">↓</button>
            <button class="glass-button" onclick="incrementTime('seconds', 1)">↑</button>
            <button class="glass-button" onclick="decrementTime('seconds', 1)">↓</button>
        </div>
        <button class="glass-button" onclick="startTimer()">Start</button>
        <button class="glass-button" onclick="stopTimer()">Stop</button>
        <button class="glass-button" onclick="resetTimer()">Reset</button>
        <div id="display">Time: 00:00</div>
    </div>

    <script src="script.js"></script>
</body>
</html>

What’s Happening Here? 🤔

🔢 <input> tags: These are for entering the minutes and seconds.
🔼 Buttons: Each button has a job:
- 🚦Start: Starts the countdown.
- 🛑Stop: Pauses the countdown.
- 🧹Reset: Sets the time back to 00:00.
- ↑ and ↓: Increases or decreases the minutes and seconds.
⌛ <div> with id="display": This shows the time as it counts down. Think of it as the clock on a fancy timer.

🎨 CSS

CSS makes our timer app look stylish, like putting on a cool outfit! 👗

Here’s how we styled it to have a glassy, blue effect:

/* style.css */
body {
    font-family: Arial, sans-serif;
    background: linear-gradient(to bottom, #87CEEB, #000); /* Blue to black background */
    color: #fff;
    height: 100vh;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.glass-container {
    background: rgba(255, 255, 255, 0.1); /* Transparent white background for glass effect */
    padding: 20px 10px;
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37); /* Shadow for depth */
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18); /* Subtle border */
    width: 300px;
}

input[type="number"] {
    width: 90px;
    padding: 10px;
    margin: 5px;
    border: none;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.2);
    color: #000;
    text-align: center;
    transition: background 0.3s, box-shadow 0.3s;
}

input::placeholder {
    color: rgba(135, 206, 235, 0.7); /* Light blue placeholder */
}

.glass-button {
    padding: 10px 22px;
    border-radius: 10px;
    background: rgba(135, 206, 235, 0.2); /* Soft blue background */
    box-shadow: 0 4px 15px rgba(135, 206, 235, 0.5);
    border: none;
    color: #000;
    cursor: pointer;
    transition: background 0.3s, box-shadow 0.3s;
}

#display {
    font-size: 24px;
    background: rgba(0, 0, 0, 0.3); /* Dark background for contrast */
    padding: 10px;
    border-radius: 10px;
    color: #87CEEB; /* Sky blue text */
}

How Does this Magic Work? 🪄

🫗 Backgrounds: The linear gradient makes the background look like the sky fading into night. 🌌
🥃 Glass Effect: The backdrop-filter: blur makes the box look frosted, like a window on a cold morning. ❄️
🔘 Button Style: The buttons look like they’re made of glass with a soft shadow and rounded edges.

🧠 JavaScript

JavaScript gives life to our timer (making the buttons TAKE ACTION)! 🎬

// script.js
let countdown;

function startTimer() {
    const minutesInput = document.getElementById('minutesInput').value;
    const secondsInput = document.getElementById('secondsInput').value;

    let minutes = parseInt(minutesInput) || 0;
    let seconds = parseInt(secondsInput) || 0;
    let time = minutes * 60 + seconds;

    if (isNaN(time) || time <= 0) {
        alert('Please enter a positive number');
        return;
    }

    clearInterval(countdown); // Stop any previous timer

    countdown = setInterval(() => {
        let mins = Math.floor(time / 60);
        let secs = time % 60;
        document.getElementById('display').textContent = `Time: ${String(mins).padStart(2, '0')}:${String(secs).padStart(2, '0')}`;

        if (time <= 0) {
            clearInterval(countdown);
            document.getElementById('display').textContent = 'Time: 00:00 - Time’s up!';
        }

        time--;
    }, 1000);
}

function resetTimer() {
    clearInterval(countdown);
    document.getElementById('display').textContent = 'Time: 00:00';
}

function incrementTime(type, amount) {
    const input = document.getElementById(`${type}Input`);
    let value = parseInt(input.value) || 0;
    input.value = Math.max(value + amount, 0);
}

function decrementTime(type, amount) {
    incrementTime(type, -amount);
}

function stopTimer() {
    clearInterval(countdown); // Stop the interval
}

Breaking It Down 🧩

startTimer: Starts counting down from the time you set. If you put in 5 minutes, it converts it to 300 seconds and starts ticking down. ⏳
setInterval: This function counts down every second, like a stopwatch. 📅
resetTimer: Stops the timer and resets the display to 00:00.
incrementTime and decrementTime: Adds or subtracts time when you click the up or down buttons. Simple math! ➕➖
stopTimer: Pauses the timer when you press stop.