source/misc/embedded_libs/fmt-8.1.1/doc/bootstrap/mixins/opacity.less

browsing at commit = 0fba975828a1e00338f971a6dd67fb8b0f7ba21a

branches: v2.9.X

// Opacity

.opacity(@opacity) {
  opacity: @opacity;
  // IE8 filter
  @opacity-ie: (@opacity * 100);
  filter: ~"alpha(opacity=@{opacity-ie})";
}