I thought the Pixel (PX) unit for specifiying font sizes was supposed to look(in size) the same in both the browsers but this is not the case.. during my testing a page using a font size of 13 px showed bigger in IE 5.5 and smaller in Netscape 4.7... and i coulndt understand why??? i know a little tinny winy font size diff wont harm a lot but when ia open a 400x300 sized new window i want the content to fill up whole of the space.. it looks fine in IE but in NS some of the space is still left out. Further more, using CSS (and PX), i noticed one more thing in NS that when i load the page.. it shows up all the right types and sizes.. but when i increase the font size in NS ( ctrl+] ) it shows all the fonts in default type (times new roman).. does any body know any work around solution or explanation... further more i am interested in the EM unit also.. but i havent been able to understand it yet... Thanks for ur time