Hi Sumit,
I’m happy to see if we can help with your requirements. Can you send a more detailed explanation of what you are looking to do to support@contextly.com?
It sounds like you are trying to do something very specific, but you do already have full CSS control. You can download the display CSS from the control panel (WP->Settings->Contextly->Big Settings Button -> Main Module (scroll down.).
Thanks,
Ryan Singel