border-bottom-radius($modal-content-border-radius);\n\n  // Easily place margin between footer elements\n  > :not(:first-child) { margin-left: .25rem; }\n  > :not(:last-child) { margin-right: .25rem; }\n}\n\n// Measure scrollbar width for padding body during modal show/hide\n.modal-scrollbar-measure {\n  position: absolute;\n  top: -9999px;\n  width: 50px;\n  height: 50px;\n  overflow: scroll;\n}\n\n// Scale up the modal\n@include media-breakpoint-up(sm) {\n  // Automatically set modal's width for larger...