🔥 Cheat Sheet: HTML, CSS & JavaScript

🛠️ HTML Basics

                <!DOCTYPE html>  
            
                <a href="https://example.com" target="_blank">Open in New Tab</a>
            
                <img src="image.jpg" alt="Image Description" width="300" height="200">
            
                <table>
        <tr><th>Name</th><th>Age</th></tr>
        <tr><td>Amit</td><td>20</td></tr>
    </table>
            
                <form action="/submit" method="POST">
        <input type="text" name="username" placeholder="Enter name" required>
        <button type="submit">Submit</button>
    </form>
            
                <a href='url'>Link</a>
                
            

🎨 CSS Basics

                /* Center an element */
    div {
        display: flex;
        justify-content: center;
        align-items: center;
    }
            
                /* Box Shadow */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
            
                /* Gradient Background */
    background: linear-gradient(90deg, #ff7e5f, #feb47b);
            
                /* Hover Effect */
    button:hover {
        background: #007bff;
        color: #fff;
    }
            
                /* Media Query */
    @media (max-width: 768px) {
        body {
            background: lightgray;
        }
    }
            

⚙️ JavaScript Basics

                // Alert Box
    alert("Hello, World!");
            
                document.querySelector("p");
            
            
                // DOM Manipulation
    document.getElementById("demo").innerText = "Hello!";
            
                // Loop Example
    for(let i = 0; i < 5; i++) {
        console.log(i);
    }
            
                // Event Listener
    document.querySelector("button").addEventListener("click", () => {
        alert("Button clicked!");
    });
            
                // Fetch API Example
    fetch("https://api.example.com")
        .then(response => response.json())
        .then(data => console.log(data));