Help - Background Image Cannot Be Removed

I just completed the course, “How to Make a website with NameCheap”. Well, after I completed the course and got my website up and running with NameCheap and bootstrap, a weird thing is happening. I removed the background image from the CSS code within the body tag but it still appears on Chrome. Firefox and other browsers, including Chrom eon mobile show the background image HAS been removed but for some reason, on my laptop where I created the website from, and on Chrome only, the background image is still there. What is going on?