html {
height: 100%
}
body {
background-image:url("../images/myImage.jpg");
background-repeat: no-repeat;
background-size: 100% 100%;
}body {
background: url(path/to/bg-image.jpg) no-repeat center center fixed;
background-size: cover;
}html {
height: 100%;
}
body {
color: #999;
background: url('../images/background/main_bg.jpg') no-repeat center center fixed;
font-family: 'Roboto', sans-serif;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}body {
background-position: center;
background-repeat: no-repeat;
background-size: contain;
}