Well, we live in a very different world today. And today, we have access to @keyframes, animation, and so much more in modern browsers. This got me wondering what type of simple marquee I could whip up in an instant (wound up playing with this for a little over an hour). What I came up with is posted below.
Take some time to read through the embedded comments, and play with the code. If you have any questions please feel free to post them in the comments below and I’ll assist as I am able.