Sass file for rounded-cormers

_rounded-corner.scss

@mixin round-corner($vert, $horz, $radius: 4px) {
  -webkit-border-#{$vert}-#{$horz}-radius:  $radius;
  -moz-border-radius-#{$vert}#{$horz}:      $radius;
  border-#{$vert}-#{$horz}-radius:          $radius;
}

@mixin rounded-corners($radius:4px){
  -webkit-border-radius: $radius;
     -moz-border-radius: $radius;
       -o-border-radius: $radius;
          border-radius: $radius;
}

@mixin rounded-corners-top($radius: 4px){
  @include round-corner(top, left, $radius);
  @include round-corner(top, right, $radius);
}
@mixin rounded-corners-bottom($radius:4px){
  @include round-corner(bottom, left, $radius);
  @include round-corner(bottom, right, $radius);
}
@mixin rounded-corners-right($radius:4px){
  @include round-corner(top, right, $radius);
  @include round-corner(bottom, right, $radius);
}
@mixin rounded-corners-left($radius:4px){
  @include round-corner(top, left, $radius);
  @include round-corner(bottom, left, $radius);
}