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8.0

About using ems for font-size, div width and IE

Asked by dzash2000 in Cascading Style Sheets (CSS), Hypertext Markup Language (HTML)

Tags: CSS, ems, font-size, IE6

Hi -

I'm just exploring using ems instead of px for font-sizes and div widths and I have a few questions.  

I'm OK with measuring fonts in ems but is it really practical to measure div's widths in ems?

If so, can I use ems for the width of some divs and then use pixels or percent for the width of others?

I've read that 16px is the default font size for browser display. (1em = 16px)
Is this an absolute, cross-platform and cross-browser truth?

If I use ems to size the width of my web page do I need to make a conditional statement with a different # of ems to get the same size in IE?

How do I calculate the difference?

I've learned a lot reading the knowledge base here and elsewhere.  I'd just like to fill in these gaps.

TIA your expert answers.
d2



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body{
font-size:100%
} /* 1em 16px */
 
#wrapper{
width:48.75em;
}  /* overall page width of 780px */
 
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[+][-]09/18/09 07:29 AM, ID: 25366332Accepted Solution

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Zones: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML)
Tags: CSS, ems, font-size, IE6
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Solution Provided By: dzash2000
Participating Experts: 2
Solution Grade: A
 
[+][-]09/17/09 03:31 PM, ID: 25361698Assisted Solution

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