CSS Floating Animation Make easy - CSS Animation

Html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS floating Animation</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <div class="image">
        <img src="joystick.png" alt="">
    </div>
</body>
</html>

CSS

*{
    margin: 0;
    padding: 0;
}
.image{
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translate(-50%,-50%);
}
.image img{
    width: 70%;
    position: relative;
    top: 10px;
    animation: floating 2s ease-in-out alternate-reverse infinite;
}
@keyframes floating {
    0%{
        top: 30px;
    } 
    100%{
        top: 0;
    }   
} 