You want this: https://i.imgur.com/wHJ31Hu.png
Go to Assets > style.css and paste this at the bottom of the file:
max-width: 1200px !important;
width: 95% !important;
Hope this helps.
If my answer can help you solve your issue. Please mark it as a solution, thank you and good luck.
Hello. No this code did not work. I copied and paste at the bottom per your instructions but my slideshow still shows long and not like the picture you showed me. Yes I want the slideshow that size. Is there another code to use? Here is my website