Katochimoto/xblocks

src/styl/init/mixins.styl

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/**
 * Opacity with conditional IE support.
 */
opacity(n, args...)
  opacity: n args
  if ie
    val = round(n * 100)
    if val == 100
      -ms-filter: none
      filter: none
    else
      -ms-filter: 'alpha(Opacity=%s)' % val args
      filter: 'alpha(opacity=%s)' % val args