featurebase/lattice/src/App.module.scss

.container {
  height: calc(100vh - 64px);
}

.layout {
  display: grid;
  height: 100%;
  grid-template-areas: 'left-nav main-content';
  grid-template-columns: 250px calc(100vw - 250px);
  grid-template-rows: 1fr;
}

.mainContent {
  grid-area: main-content;
}