moar docs

docs/styles/max_height.md

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+# Max-height
+
+The `max-height` rule sets a maximum width for a widget.
+
+## CSS
+
+```sass
+
+/* Set a maximum height of 10 rows */
+max-height: 10;
+
+/* Set a maximum height of 25% of the screen height */
+max-height: 25vh;
+```
+
+## Python
+
+```python
+# Set the maximum width to 10 rows
+widget.styles.max_height = 10
+
+# Set the maximum width to 25% of the screen width
+widget.styles.max_height = "25vw"
+
+```