clip shadows view

Author: honghaoz

playgrounds/ComposeUIPlayground-iOS/ComposeUIPlayground-iOS/PlaygroundViews/Playground+ShadowView.swift

@@ -413,10 +413,15 @@ extension Playground {
 
         Spacer(height: 32)
       }
-
       .frame(.flexible)
     }
 
+    override init(frame: CGRect) {
+      super.init(frame: frame)
+
+      clippingBehavior = .always
+    }
+
     override func animate() {
       size = CGSize(width: CGFloat.random(in: 50 ... 150), height: CGFloat.random(in: 50 ... 150))
       cornerRadius = CGFloat.random(in: 0 ... 25)