Relax Breath of Solution.

Steps to reproduce:
1. Get the mx:Text compont
2. Fill with some text.
3. Run the project
4. Click and all select the text in the component,
5. Drag mouse in side the component to bottom words.
6. you may see, top line of the text invisible, it goes top and masked in component.

The following example shows how you can customize a Flex TextInput control’s error color and error string using the errorColor style and errorString property.