I'm setting up AbanteCart for use with an existing static website. Embedding is just about there but I'm having issues with the modal box for cart/checkout. I have a fixed navbar, using DD Smoothmenu, loaded from a separate html page with Javascript. if the page is not scrolled the modal box sits on top of the menu (& all other page elements), where it needs to be. When the page is scrolled the menu moves to the top of the page, as required but the modal box then sits behind the menu with the top half of the title bar obscured. I've tried adjusting the z-index setting for the html page elements but it's made no difference.
Ideally I would like to either adjust the z position of the modal box or to move it a few pixels down the page. I've tried to identify the relevant AbanteCart files without much success. If someone could advise me on which files I need to change it would be appreciated.
Also knowing which files are needed to edit the title bar would be useful.

YAY! Thank you Basara! It worked. Forgot I had to clear the cache as well. Now I am doing the happy dance

Hello,
I need to edit the colors of that dropdown on that box and some changes in the color of border, background color and the after dropdown function's colors too.
 Can you tell me the location of lines which should be edited on the style.css please?

Thank you...
G.O.

To set up SMTP in AbanteCart with GoDaddy:

Log in to AbanteCart.
Navigate to "System" > "Settings" > "Mail."
Choose SMTP as the mail engine.
Enter GoDaddy's SMTP server details.
Enable SMTP authentication.
Set your customercare email as the sender.
Save changes and test the email settings.
Replace placeholders with your actual details.

Thank you for showing me the solution

Hello.
If you use a non-modified version of Authorize.Net make sure you have Fast checkout enabled. Additionally, when encountering an error, please inspect both the browser's console log and AbanteCart's error log for insights. Could you specify if the error appeared upon loading the payment page or after submitting the card details?