Tutorial: Windows phone 7 Styles (Static Resources)
Share/Save/Bookmark
Description: Styles that can be used in XAML
Notes:  C:\Program Files (x86)\Microsoft SDKs\Windows Phone\v7.0\Design
\ThemeResources.xaml

TextBlock (Label)
Style="{StaticResource PhoneTextLargeStyle}"
Style="{StaticResource PhoneTextTitle1Style}"