diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..c65b4948
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,5 @@
+# VSCode supports `jsonc` for all of its JSON files
+.vscode/*.json linguist-language=jsonc
+
+# We use PostCSS for our CSS files
+*.css linguist-language=PostCSS