sorry i don't really know how to explain it in english, i was trying to make a standard html description to use on ebay for my items on sale, i did used 3-4 fonts that i downloaded from here and it seemed all fine as long as i tried to look at one of my ebay insertion on another pc, the special fonts that i used were not keeped and all the text was in a simple font like arial or courier, can someone explain me why did this happen? do know that i don't understand a thing about html or other things like that...

thanks to all who will answer!

If you're making this using "standard html", you'll only be able to see fonts you have installed on your computer. You could use @font-face (check this link) but I have no idea if ebay allows you to do this

It's because your font is not installed on the other PC.