// based on compass clearfix
 
 @import _hacks.sass
 
 // Extends the element to enclose any floats it contains.
 // This basic method is preferred for the usual case, when positioned content will not show outside the bounds of the container.
 // Recommendations include using this in conjunction with a width:
 // http://www.quirksmode.org/blog/archives/2005/03/clearing_floats.html
 =clearfix
   :overflow hidden
   +has-layout
 
 // Extends the element to enclose any floats it contains.
 // This older "Easy Clearing" method has the advantage of allowing positioned elements to hang outside the bounds of the container, at the expense of more tricky CSS.
 // http://www.positioniseverything.net/easyclearing.html
 =pie-clearfix
   &:after
     :content " "
     :display block
     :height 0
     :clear both
     :overflow hidden
     :visibility hidden
   +has-layout