“.sidebar {--Offset: 2Rem; Flex-Grow: 1; flex-bass: 300px; ALIGN-SEG: Démarrer; Position: collante; en haut: var (- offset); }” Réponses codées

.sidebar {--Offset: 2Rem; Flex-Grow: 1; flex-bass: 300px; ALIGN-SEG: Démarrer; Position: collante; en haut: var (- offset); }

/* Sticky Sidebar */
.sidebar {
  --offset: 2rem;
  flex-grow: 1;
  flex-basis: 300px;
  align-self: start;
  position: sticky;
  top: var(--offset);
}