one css gradient on block group code example
Example: create css 3d gradient
<!DOCTYPE html>
<html>
<head>
<title>CSS 3D Box Test</title>
<link rel="stylesheet" href="style.css" type="text/css" />
<style>
.box {
position:relative;
width:600px;
height:300px;
margin:100px auto 0 auto;
}
.box-gradient {
position:absolute;
width:100%;
height:100%;
border-radius:10px;
-moz-border-radius:10px;
-webkit-border-radius:10px;
background: -moz-linear-gradient(left, #CCCCCC 0%, #EEEEEE 50%, #EEEEEE 50%, #CCCCCC 100%);
background: -webkit-gradient(linear, left top, right top, color-stop(0%,#CCCCCC),color-stop(50%,#EEEEEE), color-stop(50%,#EEEEEE), color-stop(100%,#CCCCCC));
}
.box-shadow {
position:absolute;
left:50%;
margin:400px 0 0 -290px;
bottom:10px;
width:580px;
height:16px;
background:#fff;
border-radius:290px / 8px;
-moz-border-radius:290px / 8px;
-webkit-border-radius:290px / 8px;
box-shadow:0 10px 20px #000;
-moz-box-shadow:0 10px 20px #000;
-webkit-box-shadow:0 10px 20px #000;
}
<style>
</head>
<body>
<div class="box">
<div class="box-shadow"></div>
<div class="box-gradient">
...some content can go here...
</div>
</div>
</body>
</html>