Printing of sales invoice

can anyone help me please,actually when i have input all the data in the table in a sales invoice form ,and make a preview (to print),it appear like this:

Regards trishty

You need to add bootstrap code,

<div class="row">
	<div class="col-xs-8">
            <!-- Your code for table -->

Thanks a lot,can you tell me where should i add this bootstrap code.