The following example shows how you can clip a container’s content in Flex by setting the clipContent property.
According to the Flex 3 documentation for the Container class’s
Whether to apply a clip mask if the positions and/or sizes of this container’s children extend outside the borders of this container. If
false, the children of this container remain visible when they are moved or sized outside the borders of this container. If
true, the children of this container are clipped.
false, then scrolling is disabled for this container and scrollbars will not appear. If
true, then scrollbars will usually appear when the container’s children extend outside the border of the container.
The default value is