I am new to SSRS. I have created a report and was able to deploy it on the server. I am calling the report from ASP.NET application. How can I change the CSS of the report?
You can customize the CSS at :\Program Files\Microsoft SQL Server\MSSQL.n\Reporting Services\ReportServer\Stylesor you can specify your own Stylesheet.
See this MSDN article for complete reference: Customizing Style Sheets for HTML Viewer and Report Manager