--- /dev/null
+# no-empty-source
+
+Disallow empty sources.
+
+```css
+ ···\n\t
+/** ↑
+ * This empty source */
+```
+
+A source containing only whitespace is considered empty.
+
+## Options
+
+### `true`
+
+The following patterns are considered violations:
+
+```css
+
+```
+
+```css
+\t\t
+```
+
+```css
+\n
+```
+
+The following patterns are *not* considered violations:
+
+```css
+a {}
+```
+
+```css
+/* Only comments */
+```