Cross-browser background gradient

gradient.sass

// source: http://shaneriley.tumblr.com/post/3462508768/a-sass-mixin-for-cross-browser-css-background-gradients

= gradient-bg($color1, $color2)
  background-color: $color2
  filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0, startColorstr=#{$color1}, endColorstr=#{$color2})
  background-image: -moz-linear-gradient(center top, $color1, $color2)
  background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, from($color1), to($color2))
  background-repeat: no-repeat
  
#container
  +gradient-bg(#ffffff, #ececec)