--- /dev/null
+# function-comma-space-after
+
+Require a single space or disallow whitespace after the commas of functions.
+
+```css
+a { transform: translate(1, 1) }
+/** ↑
+ * The space after these commas */
+```
+
+## Options
+
+`string`: `"always"|"never"|"always-single-line"|"never-single-line"`
+
+### `"always"`
+
+There *must always* be a single space after the commas.
+
+The following patterns are considered violations:
+
+```css
+a { transform: translate(1,1) }
+```
+
+```css
+a { transform: translate(1 ,1) }
+```
+
+The following patterns are *not* considered violations:
+
+```css
+a { transform: translate(1, 1) }
+```
+
+```css
+a { transform: translate(1 , 1) }
+```
+
+### `"never"`
+
+There *must never* be whitespace after the commas.
+
+The following patterns are considered violations:
+
+```css
+a { transform: translate(1, 1) }
+```
+
+```css
+a { transform: translate(1 , 1) }
+```
+
+The following patterns are *not* considered violations:
+
+```css
+a { transform: translate(1,1) }
+```
+
+```css
+a { transform: translate(1 ,1) }
+```
+
+### `"always-single-line"`
+
+There *must always* be a single space after the commas in single-line functions.
+
+The following patterns are considered violations:
+
+```css
+a { transform: translate(1,1) }
+```
+
+```css
+a { transform: translate(1 ,1) }
+```
+
+The following patterns are *not* considered violations:
+
+```css
+a { transform: translate(1, 1) }
+```
+
+```css
+a { transform: translate(1 , 1) }
+```
+
+```css
+a {
+ transform: translate(1
+ ,1)
+}
+```
+
+### `"never-single-line"`
+
+There *must never* be whitepace after the commas in single-line functions.
+
+The following patterns are considered violations:
+
+```css
+a { transform: translate(1, 1) }
+```
+
+```css
+a { transform: translate(1 , 1) }
+```
+
+The following patterns are *not* considered violations:
+
+```css
+a { transform: translate(1,1) }
+```
+
+```css
+a { transform: translate(1 ,1) }
+```
+
+```css
+a {
+ transform: translate(1
+ , 1)
+}
+```