The tag was first introduced in early versions of Microsoft's Internet Explorer, and was compared to Netscape's blink element, as a proprietary non-standard extension to the HTML standard with usability problems.
As with the blink element, marquee-tagged images or text are not always completely visible on rendered pages, making printing such pages an inefficient (if not impossible) task; typically multiple attempts are required to capture all text that could be displayed where messages scroll or blink.
The behavior="alternate" version of marquee makes text jitter back and forth but does not obscure any part of it if scrolling widths are set correctly.
A marquee element can contain arbitrary HTML, so in addition to text it could move one or more images, movie clips, or animated GIFs.
The style can then be invoked in HTML: The marquee element was first invented for Microsoft's Internet Explorer and is supported by it.