Tooltip for ASP.NET Web Forms provides the following unique key features:

• HTML Formatted Content
  Create tooltips with nested <div> elements; multiple fonts and text colors; preformatted text; paragraph alignment; formatted and nested tables; nested, bullet and numbered lists; images; plain text; and content formatted from cascading style sheets.
• Load on Demand
  Keep page sizes small and manageable using the C1ToolTip.OnAjaxUpdate event. This triggers an AJAX call to the server when the end-user hovers over a tooltip element on the client. The event handler receives the element's ID, allowing the rich data of the C1ToolTip to be dynamically loaded.
• Automatic Tooltips
  Give your page a clean, consistent look by automatically adding a C1ToolTip to all items on your page.
• Theming
  With just a click of the SmartTag, change the tooltip's look by selecting one of the 5 premium themes (Midnight, Aristo, Rocket, Cobalt, and Sterling). Optionally, use ThemeRoller from jQuery UI to create a customized theme!
• CSS Support
  Use a cascading style sheet (CSS) style to define custom skins. CSS support allows you to match the tooltip to your organization's standards.