diff --git a/core/src/components/textarea/readme.md b/core/src/components/textarea/readme.md
index 9f948d68c8..e8c1524977 100644
--- a/core/src/components/textarea/readme.md
+++ b/core/src/components/textarea/readme.md
@@ -314,6 +314,21 @@ Emitted when a keyboard input ocurred.
Emitted when the styles change.
+## CSS Custom Properties
+
+| Name | Description |
+| ----------------------- | ------------------------------- |
+| `--background` | Background of the textarea |
+| `--border-radius` | Border radius of the textarea |
+| `--color` | Color of the text |
+| `--padding-bottom` | Bottom padding of the textarea |
+| `--padding-end` | End padding of the textarea |
+| `--padding-start` | Start padding of the textarea |
+| `--padding-top` | Top padding of the textarea |
+| `--placeholder-color` | Color of the placeholder text |
+| `--placeholder-opacity` | Opacity of the placeholder text |
+| `--placeholder-weight` | Weight of the placeholder text |
+
----------------------------------------------
diff --git a/core/src/components/textarea/test/standalone/index.html b/core/src/components/textarea/test/standalone/index.html
index 873c80bf94..d09a66964d 100644
--- a/core/src/components/textarea/test/standalone/index.html
+++ b/core/src/components/textarea/test/standalone/index.html
@@ -13,5 +13,13 @@
+
+
+