section .container .row > [class*="col-"]:empty,
section .container .row > .col:empty, section .container-fluid .row > [class*="col-"]:empty,
section .container-fluid .row > .col:empty {
  border: 1px solid var(--bs-secondary);
  background: var(--bs-tertiary-bg);
  min-height: 200px;
  margin: 1rem; }