Adding a CSS Style & Class dynamically in an ASP.NET

Scenario
1.To add CSS class dynamically
2.Different CSS for Different Browser

.aspx

 <asp:Button ID="Button1" runat="server" Text="Button" CssClass="dynamic" />

Code Behind

      Dim classStyle As New System.Web.UI.WebControls.Style()
      classStyle.Height = 150  //any property
      Page.Header.StyleSheet.CreateStyleRule(classStyle, Me, ".dynamic")


Note
For Browser Specific
If (browser.Browser == "Chrome" ){.......}

More Details