Design wisdom in red and grey.
For those of you working with relative font-sizes in your CSS, here is a basic equation for getting the exact size equivalent in ems, given a desired px value:
emr = pxt ÷ pxp, where
emr = result font size, in ems;
pxt = target font size, in px;
pxp = parent element’s font size, in px;
If you’ve ever had trouble establishing a naming standard for your CSS classes, or if you work closely with a developer who demands uniformity when assigning IDs elements, here are some conventions (as well as some of my personal preferences on usage) that should help you form effective, easy-to-remember and predictable names.
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