<!DOCTYPE html>
<html>


<head>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
    <title>Luquid Button Animation Effects</title>
    <link rel="stylesheet" href="style.css">


</head>
<body>
    <a href="#">
    <span>Button</span>
    <div class="luquid"> </div>
   
    </a>
    
</body>

</html>
* {

    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family:  sans-serif;

}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #0c0c0c;

}

a {
    position: relative;
    padding: 20px 50px;
    display: block;
    text-decoration: none;
    text-transform: uppercase;
    width: 200px;
    
    
}

a span {
    position: relative;
    z-index: 1;
    color:#fff;
    font-size: 20px;
    letter-spacing: 8px;
}

a .luquid {
    position: absolute;
    left:0;
    top:0;
    width: 200px;
    height: 70px;
    background: #4973ff;
    box-shadow: inset 0 0 50px rgba(0, 0, 0, .5);
    transition: 0.5s;
    overflow: hidden;

}

a:hover  {
 background: black;
 z-index: 3333;
}




a .luquid:before,
a .luquid:after 
{
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    top:0;
    left: 50%;
    transform: translate(-50%,-75%);
   
}

a .luquid:before {
    border-radius: 45%;
    background: rgba(20,20,20,1);
    animation:  animate 5s linear infinite;
}



a .luquid:after {
    border-radius: 40%;
    background: rgba(20,20,20,0.5);
    animation:  animate 10s linear infinite;
}

@keyframes animate {
   
    0%{
        transform: translate(-50%,-75%) rotate(0deg);
    }
    100%{
        transform: translate(-50%,-75%) rotate(360deg);
    }
}

External CSS

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External JavaScript

This Pen doesn't use any external JavaScript resources.