Fix an issue where ContentKit webframes weren't sized properly (#2978)

Author: taranvohra

.changeset/serious-peas-train.md

@@ -0,0 +1,5 @@
+---
+"@gitbook/react-contentkit": patch
+---
+
+Fix an issue where contentkit webframes weren't resized properly

packages/react-contentkit/src/ElementWebframe.tsx

@@ -185,7 +185,7 @@ export function ElementWebframe(props: ContentKitClientElementProps<ContentKitWe
                     : { width: '100%' }),
 
                 maxWidth: '100%',
-                height: Math.max(size.height || 0, 32),
+                height: size.height ? Math.max(size.height, 32) : '100%',
                 border: 'none',
             }}
         />