See how to add a background image to an CSS image container div with this handy hand-coder's guide. Whether you're using a fancy WYSIWYG (or what-you-see-is-what-you-get) page editor like Adobe Dreamweaver CS5 or a barebones text editor like Notepad, if you want to build websites, you'll need to have some understanding of HTML (for the structure of your web pages) and CSS (for their style). And this free coder's guide will get you started along that path.
Have an iPhone? Check out all 200+ new features coming in iOS 13.