<marquee>Add the text you want to scroll</marquee>
You can even control it using these attributes
<marquee behavior="scroll" direction="right"></marquee>
<marquee behavior="scroll" direction="up"></marquee>
<marquee behavior="scroll" direction="down"></marquee>
<marquee behavior="scroll" direction="left" scrollamount="5"></marquee>
You can use CSS to make it look better and make it dynamic. But this is 'nuf for now!