button height)\n\n  // Because we use flex, the initial sizing of checkboxes is collapsed and\n  // doesn't occupy the full-width (which is what we want for xs grid tier),\n  // so we force that here.\n  .form-check {\n    width: 100%;\n  }\n\n  // Kick in the inline\n  @include media-breakpoint-up(sm) {\n    label {\n      display: flex;\n      align-items: center;\n      justify-content: center;\n      margin-bottom: 0;\n    }\n\n    // Inline-block all the things for \"inline\"\n    .form-group...