How to Create Gradient Background Animation using HTML and CSS ?

Last Updated : 26 Jul, 2024

Gradient animation can be added to the background of your websites by using simple HTML and CSS @keyframes rule that generate the desired animation.

HTML Code: In the following example, the basic structure of the HTML page is implemented.

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content=
        "width=device-width, initial-scale=1.0">
    <title>Gradient Background Animation</title>
</head>

<body>
    <section>
        <div>
            <h2>GeeksforGeeks</h2>
            <p>Gradient background Animation</p>
        </div>
    </section>
</body>

</html>

CSS Code: In the following section, designing of the background is implemented using simple CSS @keyframes rule that provide the animation feature. Providing different gradient colors is done using linear-gradient() function.

<style>
    body {
        margin: 0;
        padding: 0;
        animation: effect 3s linear infinite;
    }

    section {
        width: 100%;
        height: 100vh;
    }

    div {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        font-size: 3em;
    }

    h2 {
        text-align: center;
    }

    @keyframes effect {
        0% {
            background: linear-gradient(#008000, #00FF00);
        }

        50% {
            background: linear-gradient(#220080, #0084ff);
        }

        100% {
            background: linear-gradient(#e78f3c, #ff4800);
        }
    }
</style>

Complete Code: It is the combination of the above two code sections.

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content=
        "width=device-width, initial-scale=1.0">
    <title>Gradient Background Animation</title>
</head>

<style>
    body {
        margin: 0;
        padding: 0;
        animation: effect 3s linear infinite;
    }

    section {
        width: 100%;
        height: 100vh;
    }

    div {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        font-size: 3em;
    }

    h2 {
        text-align: center;
    }

    @keyframes effect {
        0% {
            background: linear-gradient(#008000, #00FF00);
        }

        50% {
            background: linear-gradient(#220080, #0084ff);
        }

        100% {
            background: linear-gradient(#e78f3c, #ff4800);
        }
    }
</style>

<body>
    <section>
        <div>
            <h2>GeeksforGeeks</h2>
            <p>Gradient background Animation</p>
        </div>
    </section>
</body>

</html>