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docs/styles/scrollbar_size.md

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+# Scrollbar-size
+
+The `scrollbar-size` rule changes the size of the scrollbars. It takes 2 integers for horizontal and vertical scrollbar size respectively.
+
+The scrollbar dimensions may also be set individually with `scrollbar-size-horizontal` and `scrollbar-size-vertical`.
+
+## Example
+
+In this example we modify the size of the widgets scrollbar to be _much_ larger than usual.
+
+=== "scrollbar_size.py"
+
+    ```python
+    --8<-- "docs/examples/styles/scrollbar_size.py"
+    ```
+
+=== "Output"
+
+    ```{.textual path="docs/examples/styles/scrollbar_size.py"}
+    ```
+
+## CSS
+
+```sass
+/* Set horizontal scrollbar to 10, and vertical scrollbar to 4 */
+Widget {
+    scrollbar-size: 10 4;
+}
+```
+
+## Python
+
+```python
+# Set horizontal scrollbar to 10, and vertical scrollbar to 4
+widget.styles.horizontal_scrollbar = 10
+widget.styles.vertical_scrollbar = 10
+```