CSS and TWebbrowser delphi

Question

I was wondering if it was possible to manipulate the CSS of websites. For example color in the input fields? I had a look at several questions, but its not clear to me if it

Answer 1

It is possible to modify CSS by adding a stylesheet from code, after the page is loaded:

var
   document: IHTMLDocument2;
   stylesheet: IHTMLStyleSheet;
   stylesheetIndex: Integer;
begin

   // Inject CSS Style Sheets
   document := webBrowser1.Document as IHTMLDocument2;

   stylesheetIndex := document.styleSheets.length;
   if stylesheetIndex > 31 then
      raise Exception.Create('Already have the maximum amount of CSS stylesheets');

   stylesheet := document.createStyleSheet('', stylesheetIndex);
   stylesheet.cssText := ...