PostCSS plugin that shims basic behavior of the proposed CSS display: subgrid spec.

Note: This plugin only provides a shorthand for monkey-patching a single use-case for CSS subgrids: inheriting the parent grid for full-width containers with placed children.

See this Codepen for a demonstration.

.foo {
  display: subgrid;
}

.foo {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: inherit;
  grid-gap: inherit;
  margin: 0;
  padding: 0;
}

Open to suggestions and PRs for other hacks/patterns that could be included to shim more advanced subgrid behavior.