Using this tag, you can insert and reproduce formatted text, preserving its original layout. This tag is frequently used to show code listings, tabulated information, and blocks of text that were created for some text-only form, such as electronic mail messages and news postings. Since the PRE element interprets HTML tags, you must use special symbols for any character that has a meaning in HTML that you wish to be displayed rather than interpreted. All PRE elements start on a new line, preceded by extra space. This effectively turns on wrapping, and lets you specify the line width in characters.
WRAP turns on wrapping, so that all lines fit inside the browser.
The XMP tag displays a sequence of literal characters in the browser's default fixed-width font. All XMP elements start on a new line, preceded by extra space.