center two floating divs in a container div?

What is the best way to center two floating divs in a container div?
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I think the best way is to use CSS rules in separate .css file and link it to source file.
For container div:
text-align: center;

For divs you want centered:
display: inline-block;

the zoom and second display is needed for IE.  Not sure about IE9 but IE does nto recognize inline-block as a display value.  You have to use those two in conjunction with each other and you'll get the effect of inline-block.  Proper web browsers will ignor the CSS that starts with *, so it also works in FF, Chrom etc...
David S.Commented:
The "best way" would depend on the situation. Here is one way:
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