Fix iframe on slider so it displays properly on wordpress website.

General information for the website: Hotel Website
Kind of development: Customization of existing website
Description of requirements/features: Hi, Our website sells hotel rooms - We currently have a room availability window which is overlayed on the main image slider,.

However its currently displaying incorrectly on most browsers, with a gray box. and is aligned incorrectly.

I would like this fixed and to align on the right, inline with the page fold.

Would like this done ASAP.

Have included images to explain.
Thanks
Extra services needed: Customization
Extra notes: Hi, Our website sells hotel rooms - We currently have a room availability window which is overlayed on the main image slider,.

However its currently displaying incorrectly on most browsers, with a gray box. and is aligned incorrectly.

I would like this fixed and to align on the right, inline with the page fold.

Would like this done ASAP.

Have included images to explain.
Thanks