rounded.sass

!default_rounded_amount ||= 5px

// Round all corners by amount
=round-corners(!radius = !default_rounded_amount)
  border-radius= !radius
  -moz-border-radius= !radius
  -webkit-border-radius= !radius

// Round corner at position by amount.
// values for !vert: "top", "bottom"
// values for !horz: "left", "right
=round-corner(!vert, !horz, !radius = !default_rounded_amount)
  border-#{!vert}-#{!horz}-radius= !radius
  -moz-border-radius-#{!vert}#{!horz}= !radius
  -webkit-border-#{!vert}-#{!horz}-radius= !radius
  
=round-top-left-corner(!radius = !default_rounded_amount)
  +border-corner-radius("top", "left", !radius)

=round-top-right-corner(!radius = !default_rounded_amount)
  +border-corner-radius("top", "right", !radius)

=round-bottom-left-corner(!radius = !default_rounded_amount)
  +border-corner-radius("bottom", "left", !radius)

=round-bottom-right-corner(!radius = !default_rounded_amount)
  +border-corner-radius("bottom", "right", !radius)

// Round left corners by amount
=round-left-corners(!radius = !default_rounded_amount)
  +round-top-left-corner(!radius)
  +round-top-left-corner(!radius)

// Round right corners by amount
=round-right-corners(!radius1 = !default_rounded_amount)
  +round-top-right-corner(!radius)
  +round-bottom-right-corner(!radius)

// Round top corners by amount
=round-top-corners(!radius1 = !default_rounded_amount)
  +round-top-left-corner(!radius)
  +round-top-right-corner(!radius)

// Round bottom corners by amount
=round-bottom-corners(!radius1 = !default_rounded_amount)
  +round-bottom-left-corner(!radius)
  +round-bottom-right-corner(!radius)