I'm converting an old site from html 4.01 to html5 (mainly just to learn what's new) and trying to avoid sizing anything in pixels. When I run my html thru the W3C validator, I get errors like this:
Bad value 45% for attribute width on element img: Expected a digit but saw % instead.
for a line that looks like:
<img class="imgright" alt="whatever" src="img/someimage.jpg" width="45%" />
The CSS for "imgright" is:
border: 5px ridge;
From what I'm reading around the net, its acceptable to size things in pixels (e.g., width="250") in the HTML but using the % is not acceptable. The HTML works fine with the % in all the browsers I've tried, but I prefer to do things right.
So what is the correct solution? Make a new class (or ID) in css for each size of image I might need?