For very basic HTML hints check in the FAQ (http://www.livejournal.com/support/faq.bml) under "Journal Entries."
In this particular case, what you want is the cut tag whose function is to hide large bodies of text. This makes the friends page neat. You'll find that under "journal specific tags" and it looks like < lj-cut > [without the spaces] and the close tag < /lj-cut >. That's just basic cut tag.
[if you have anymore questions email me at schadenfreude523@lycos.com]
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In this particular case, what you want is the cut tag whose function is to hide large bodies of text. This makes the friends page neat. You'll find that under "journal specific tags" and it looks like < lj-cut > [without the spaces] and the close tag < /lj-cut >. That's just basic cut tag.
[if you have anymore questions email me at schadenfreude523@lycos.com]
o.O;; I hope this helps a little.