body {
    
    margin:0px;
    background-color:#36393b;
    background: -webkit-gradient(radial, left top, left bottom, from(#669), to(#262a2d)); /* Saf4+, Chrome */
    background: -webkit-radial-gradient(center, circle, #669, #262a2d); /* Chrome 10+, Saf5.1+ */
   
    background: -moz-radial-gradient(center, circle, #669, #262a2d); /* FF3.6+ */
    background: -ms-radial-gradient(center, circle, #669, #262a2d); /* IE10 */
    background: -o-radial-gradient(center, circle, #333333, #323232); /* Opera 11.10+ */
    background: radial-gradient(center, circle, #669, #262a2d); /* W3C */


    background: -webkit-radial-gradient(50% 50%, circle ,#669, #262a2d); /* Chrome 10+, Saf5.1+ */
 
}
body, html {
    height: 100%;
}

#centered{
    width:175px;
    margin-left:auto;
    margin-right:auto;
    margin-top:150px;
    height:100%;
}