Create Box Shadow Generator in HTML, CSS, JS

Piyush608 top freelancer india 1

Creating a Box Shadow Generator involves a user interface where users can input shadow parameters (like offset, blur, spread, color, etc.) and see the effect in real-time. Here’s how you can create a simple Box Shadow Generator using HTML, CSS, and JavaScript.

HTML

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS Box Shadow</title>
    <link rel="stylesheet" href="./style.css" type="text/css">
</head>
<body>
    <div class="container">
        <h1 class="title">Box Shadow Generator</h1>
        <div class="box">
            <div class="properties-wrapper">
                <div class="property">
                    <label for="h-offset">h-offset</label>
                    <input type="range" name="h-offset" id="h-offset" min="-100" max="100" value="0" data-unit="px">
                </div>
                <div class="property">
                    <label for="v-offset">v-offset</label>
                    <input type="range" name="v-offset" id="v-offset" min="-100" max="100" value="0" data-unit="px">
                </div>
                <div class="property">
                    <label for="blur">blur</label>
                    <input type="range" name="blur" id="blur" min="0" max="200" value="10" data-unit="px">
                </div>
                <div class="property">
                    <label for="spread">spread</label>
                    <input type="range" name="spread" id="spread" min="0" max="200" value="10" data-unit="px">
                </div>
                <div class="property">
                    <label for="color">color</label>
                    <input type="color" name="color" id="color">
                </div>
            </div>
        </div>
        <div class="output">
            <div class="code">
                <p class="normal">box-shadow:</p>
            </div>
        </div>
    </div>
    <script src="./app.js" type="text/javascript"></script>
</body>
</html>

 

CSS (styles.css)

@import url('https://fonts.googleapis.com/css2?family=Poppins&display=swap');
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
*::before,
*::after {
    box-sizing: border-box;
}
html,
body {
    font-size: .8em;
    font-family: 'Poppins', sans-serif;
}
body {
    min-height: 100vh;
    min-width: 100vw;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #74EBD5;
    background-image: linear-gradient(90deg, #74EBD5 0%, #9FACE6 100%);
}
h1 {
    font-size: 3em;
}
.container {
    max-width: 50rem;
    width: 80%;
    height: 50rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-radius: 12px;
}
.box {
    background: #7db86c;
    color: white;
    padding: 2rem 3.5rem;
    box-shadow: 0 0 10px 10px rgb(226, 102, 30);
    border-radius: 12px;
}
.properties-wrapper {
    font-size: 1.5rem;
}
.property {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0;
}
.property > input {
    width: 10rem;
    margin: 0 2rem;
}
.output {
    font-size: 1.5rem;
    font-family: monospace;
    max-width: 50rem;
    padding: 0.5rem;
    background: #333333;
    color: #ffffff;
    border-radius: 0.5rem;
    text-align: center;
}
.code {
    padding: 1rem;
}

 

JavaScript (script.js)

const inputsNodeList = document.querySelectorAll('.property input');

function handleUpdate(){
    const box = document.querySelector('.box');
    const hOffset = document.getElementById('h-offset').value;
    const vOffset = document.getElementById('v-offset').value;
    const blurRadius = document.getElementById('blur').value;
    const spread = document.getElementById('spread').value;
    const color = document.getElementById('color').value;
    const normal = document.querySelector('.normal');
    
    let boxShadowValue = box.style.boxShadow;
    box.style.boxShadow = `${hOffset}px ${vOffset}px ${blurRadius}px ${spread}px ${color}`;
    normal.textContent = `box-shadow: ${boxShadowValue}`;
}

inputsNodeList.forEach(input => {
    input.addEventListener('change', handleUpdate);
});
inputsNodeList.forEach(input => {
    input.addEventListener('mousemove', handleUpdate);
});



 

Explanation

  1. HTML:
    • The structure includes input controls for shadow parameters, a preview box to see the effect, and a section to display the CSS code.
    • Each input control is associated with a label and a span to show the current value.
  2. CSS:
    • Basic styling for the container, controls, preview box, and CSS code section.
    • Ensures a responsive layout with some padding, margins, and flexible box properties.
  3. JavaScript:
    • Adds event listeners to each input control to update the box shadow in real-time.
    • Updates the preview box and the CSS code display based on user inputs.

This setup provides a simple yet effective tool for generating and visualizing CSS box shadows. You can extend this by adding more controls for inset shadow, multiple shadows, and more complex configurations.

CEO Piyush Gupta


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