printing div content with css applied

Question

I am working on a project and I want to print div content.The code which I am using is fulfilling my requirements,but I am getting simple output without Css applied to it an

Answer 1

       function printpage() {
           var getpanel = document.getElementById("<%= Panel1.ClientID%>");
           var MainWindow = window.open('', '', 'height=500,width=800');
           MainWindow.document.write('');
           MainWindow.document.write("");
           MainWindow.document.write('');
           MainWindow.document.write(getpanel.innerHTML);
           MainWindow.document.write('');
           MainWindow.document.close();
           setTimeout(function () {
               MainWindow.print();
           }, 500)
           return false;

}