Most people don't know that you can look up past "snapshots" of almost any website. Archive.org is a 501(c)(3) nonprofit organization that was formed to build an expansive Internet library.
Linking a CSS file to an HTML file allows you update the styling of the HTML document by editing the CSS file.
Using CSS, you can display beautiful background images that span the entirety of the user's window -- regardless of their resolution. Here's how to do it.