Gradient
by a1ex
HTML
<div></div>
CSS
body {
background:rgb(65,94,92);
margin:0;
padding:0;
text-align:center;
}
div {
width:600px;
height:600px;
margin:-300px auto;
background: rgb(69,143,142); /* Old browsers */
/* IE9 SVG, needs conditional override of 'filter' to 'none' */
background: url(data:image/svg+xml;base64,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);
background: -moz-radial-gradient(center, ellipse cover, rgba(69,143,142,1) 0%, rgba(65,94,92,1) 70%, rgba(65,94,92,1) 100%); /* FF3.6+ */
background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%,rgba(69,143,142,1)), color-stop(70%,rgba(65,94,92,1)), color-stop(100%,rgba(65,94,92,1))); /* Chrome,Safari4+ */
background: -webkit-radial-gradient(center, ellipse cover, rgba(69,143,142,1) 0%,rgba(65,94,92,1) 70%,rgba(65,94,92,1) 100%); /* Chrome10+,Safari5.1+ */
background: -o-radial-gradient(center, ellipse cover, rgba(69,143,142,1) 0%,rgba(65,94,92,1) 70%,rgba(65,94,92,1) 100%); /* Opera 12+ */
background: -ms-radial-gradient(center, ellipse cover, rgba(69,143,142,1) 0%,rgba(65,94,92,1) 70%,rgba(65,94,92,1) 100%); /* IE10+ */
background: radial-gradient(ellipse at center, rgba(69,143,142,1)...