/* Clearfix
 *
 * Supported:
 *   IE 6+
 *   Chrome
 *   Firefox 2+
 *   Safari 2+
 *   Opera 9.27+
 *
 * Source:
 *   http://nicolasgallagher.com/micro-clearfix-hack/
 *
 * Reference:
 *   http://kojika17.com/2013/06/clearfix-2013.html
 *   http://coliss.com/articles/build-websites/operation/css/css-micro-clearfix.html */
clearfix()
  *zoom: 1
  &:before,
  &:after
    content: ""
    display: table
  &:after
    clear: both