portainer/app/react/components/BoxSelector/BoxSelector.css

.boxselector_wrapper {
  display: flex;
  flex-flow: row wrap;
  gap: 10px;
  overflow: hidden !important;
  margin-bottom: 5px;
  margin-top: 5px;
}

@media only screen and (max-width: 700px) {
  .boxselector_wrapper {
    flex-direction: column;
  }
}

.row.header {
  background-color: var(--bg-body-color) !important;
  margin-bottom: 5px !important;
}