@mixin border-radius($radius) {
  -webkit-border-radius: $radius;
     -moz-border-radius: $radius;
      -ms-border-radius: $radius;
       -o-border-radius: $radius;
          border-radius: $radius;
}

@mixin linear-gradient-vertical($top, $bottom) {
	background: -moz-linear-gradient(top, $top 0%, $bottom 100%); /* FF3.6+ */
	background: -webkit-linear-gradient(top, $top 0%, $bottom 100%); /* Chrome10+,Safari5.1+ */
	background: -o-linear-gradient(top, $top 0%, $bottom 100%); /* Opera11.10+ */
	background: -ms-linear-gradient(top, $top 0%, $bottom 100%); /* IE10+ */
	background: linear-gradient(top, $top 0%, $bottom 100%); /* W3C */
}