All elements that inherit from Block, will have the following configuration:

• Border
  You can specify border decoration in block elements. You can specify different border configuration to the top, right, bottom, and left part of the border. You can also specify the background color and corner radius. For further information, see Configuring Border Formatting.
  
• Line spacing
  You can specify the spacing between lines in block element using LineSpacingType and LineSpacing properties. For further information, see Configuring Line Spacing Formatting.
  
• Margin
  You can specify the margin of block element using Margin property.
  
• Padding
  You can specify the padding of block element using Padding property.
  
• Text alignment
  You can specify the text alignment applied to block element using TextAlignment property. The available text alignment options are Left, Center, Right, and Justify.
  
• Spacing before and after
  You can specify the spacing before and after the block element using SpacingBefore and SpacingAfter properties.

Elements that inherit from Block are Section, Paragraph, List, BlockUIContainer, and Table.

System.Object
   System.Windows.DependencyObject
      Intersoft.Client.Documents.TextElement
         Intersoft.Client.Documents.Block
            Intersoft.Client.Documents.BlockUIContainer
            Intersoft.Client.Documents.List
            Intersoft.Client.Documents.Paragraph
            Intersoft.Client.Documents.Section
            Intersoft.Client.Documents.Table

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

Block Members
Intersoft.Client.Documents Namespace