/* Keep the integration-by-parts tasks lettered while arranging them in columns. */
#ibp-integrals {
  column-count: 3;
  column-gap: 1.5rem;
}

#ibp-integrals > .heading,
#ibp-integrals > .introduction {
  column-span: all;
}

#ibp-integrals > .task {
  display: inline-block;
  width: 100%;
  break-inside: avoid;
}