    clear: left;
  }
  .two-sidebars .region-sidebar-second:before,
  .two-sidebars .region-sidebar-second:after {
    content: "";
    display: table;
  }
  .two-sidebars .region-sidebar-second:after {
    clear: both;
  }

  /* Apply the shared properties of grid items in a single, efficient ruleset. */
  .two-sidebars .region-sidebar-second .block {
