CSS Units of Measure
by Jonathan Stark
I got a question today from a designer friend who is roughing out a portfolio site and needed some help debugging her CSS. I figured I’d post my answer to her for any CSS n00bs in the audience ;-)
Here’s what I told her:
Hey V -
Here is a link to previews of how your home page looks in just about every known browser:
http://jonathanstark.litmusapp.com/pub/da5b347
You can click on the thumbnails to see a larger view. Overall, I think it looks extremely consistent across all of them.
I did notice a bit of invalid CSS in one of your files:
http://VMKAD.com/HTML/VMKADindexpg3.css
Basically, the issue is that you have some non-zero values specified with a unit of measure. Note the padding values below:
body { padding-top: 40; padding-right: 30; padding-bottom: 20; padding-left: 0; }It’s okay to set padding-left to 0 because unit of measure doesn’t matter for 0. i.e. 0px is the same as 0em is the same as 0pt.
However, the padding-top, -right, and -bottom need to have a unit of measure. For example:
body { padding-top: 40px; padding-right: 30px; padding-bottom: 20px; padding-left: 0; }
HTH!