I take it you’re talking about the slider not being centered? I see you’ve changed a lot to the css, making it less high, less wide and centering it at 53% etc. I hope you understand I can’t support these kind custom changes. Reverting back to the default slider css will surely solve it.
The second issue is the white background I take? You can easily change it by opening the style.css file and searching for the “#container” element. Simply remove the background to make it transparent.
How can i reset the slider?