The default behavior for the
marquee is for text to scroll - which means it moves across, then off, the
screen then starts the process again at the other side of the screen. You
may use the
behavior attribute to change that, by
"slide", which causes the text to move across the
screen but stop at its destination rather than repeating the process
again. If you use the value
"alternate", the text will
move in one direction then will bounce back and travel in the opposite
direction and then repeat the process all over again.
The following text will bounce from left to right:
<p><marquee behavior="alternate">Bouncy bouncy!</marquee></p>
This attribute is not defined by any standard but is well supported nonetheless.