What tricks in HTML you know?

Question

Hello i think that it will be really great to share some tricks with community

Answer 1

@Amjad ... reminds me of this (a good security lesson)

"hey, if you type in your pw, it will show as stars..."
http://bash.org/?244321

@Alekant
Not exactly a 'trick' except people occasionally forget: some tags have optional end tags, like <li>. I find omitting them looks cleaner.

Answer 2

if you see black points (password) in login page, u can open the page source and change the input type for the password from password to text than u will be able to see the real password