background-image: -webkit-radial-gradient(circle, $gradient)
background-image: -moz-radial-gradient($gradient)
background-image: -ms-radial-gradient($gradient)
- background-image: radial-gradient($gradient)
+ background-image: radial-gradient(circle, $gradient)
@mixin radius($radius: 5px)
-moz-border-radius: $radius