diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..918a366
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,7 @@
+{
+    "[javascript]": {
+        "editor.rulers": [80]
+    },
+
+    "vim.textwidth": 80
+}
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index b1f357f..32ea77d 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,5 +1,9 @@
 # Contributing
 
+## Textwidth
+
+For code of this repo in `.js` files, stick to a textwidth of 80.
+
 ## Commit Message Format
 
 The commit message format is as follows: