This modern UI technique layers an absolutely positioned glass pane (z-index: 2) over floating gradient orbs (z-index: 1). The pane utilizes CSS backdrop-filter: blur(20px)—an expensive calculation handled directly by the browser's compositing engine—to refract whatever pixels actively pass behind it.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Glassmorphism Orbs</title>
<style>
:root {
--bg: #0f172a;
--orb1: #38bdf8;
--orb2: #818cf8;
--orb3: #e879f9;
}
body {
margin: 0;
min-height: 100vh;
background-color: var(--bg);
background-image:
linear-gradient(to bottom right, #0f172a, #1e1b4b);
display: flex;
justify-content: center;
align-items: center;
overflow: hidden;
font-family: system-ui, -apple-system, sans-serif;
}
/* The floating blurred background elements */
.orb-container {
position: absolute;
width: 100vw;
height: 100vh;
overflow: hidden;
z-index: 1;
}
.orb {
position: absolute;
border-radius: 50%;
filter: blur(80px);
/* Heavy blur for soft glow */
animation: float 20s infinite ease-in-out alternate;
opacity: 0.6;
will-change: transform, top, left;
}
.orb-1 {
width: 400px;
height: 400px;
background: var(--orb1);
top: -100px;
left: -100px;
animation-duration: 25s;
}
.orb-2 {
width: 500px;
height: 500px;
background: var(--orb2);
bottom: -150px;
right: -100px;
animation-duration: 22s;
animation-delay: -5s;
}
.orb-3 {
width: 300px;
height: 300px;
background: var(--orb3);
top: 40%;
left: 60%;
animation-duration: 18s;
animation-delay: -10s;
}
@keyframes float {
0% {
transform: translate(0, 0) scale(1);
}
33% {
transform: translate(100px, -50px) scale(1.2);
}
66% {
transform: translate(-50px, 100px) scale(0.8);
}
100% {
transform: translate(50px, 50px) scale(1.1);
}
}
/* The Glass Pane Overlay */
.glass-pane {
position: relative;
z-index: 2;
width: 80%;
max-width: 800px;
height: 60vh;
border-radius: 20px;
/* The Glassmorphism Magic */
background: rgba(255, 255, 255, 0.03);
backdrop-filter: blur(20px);
-webkit-backdrop-filter: blur(20px);
/* Safari support */
/* Lighting and Borders */
border: 1px solid rgba(255, 255, 255, 0.1);
border-top: 1px solid rgba(255, 255, 255, 0.2);
border-left: 1px solid rgba(255, 255, 255, 0.2);
box-shadow:
0 25px 50px -12px rgba(0, 0, 0, 0.5),
inset 0 0 0 1px rgba(255, 255, 255, 0.05);
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
color: white;
padding: 40px;
text-align: center;
}
</style>
</head>
<body>
<!-- Soft glowing backgrounds -->
<div class="orb-container">
<div class="orb orb-1"></div>
<div class="orb orb-2"></div>
<div class="orb orb-3"></div>
</div>
<!-- The Glass structure that refracts the background -->
<div class="glass-pane">
<!-- Optional Content inside the glass -->
<h1
style="font-size: 3rem; margin-bottom: 10px; font-weight: 800; letter-spacing: -1px; text-shadow: 0 2px 10px rgba(0,0,0,0.2);">
Glassmorphism</h1>
<p style="font-size: 1.25rem; color: rgba(255,255,255,0.7); max-width: 500px; line-height: 1.5;">Notice how the
soft orbs moving behind this panel blur and refract naturally through CSS backdrop-filters.</p>
</div>
</body>
</html>Step-by-step instructions to integrate Glassmorphism Orbs into your project.
<style> block into your CSS <script> block before your closing </body> tag position: fixed; inset: 0; z-index: -1 pointer-events: none to the container if the animation blocks clicks