Clameurs/sites/all/modules/contrib/panels/panels/plugins/style_bases/pane/pane_plain_box/pane-plain-box.css

%style {
  margin-bottom: 10px;
  color: %text;
  background-color: %background;
}

%style h2 {
  color: %header-text;
  background-color: %header-background;
}