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CSS for <sub> and <sup>
sub, sup {
/* Specified in % so that the sup/sup is the
right size relative to the surrounding text */
font-size: 75%;
/* Zero out the line-height so that it doesn't
interfere with the positioning that follows */
line-height: 0;
/* Where the magic happens: makes all browsers position
the sup/sup properly, relative to the surrounding text */
position: relative;
/* Note that if you're using Eric Meyer's reset.css, this
is already set and you can remove this rule */
vertical-align: baseline;
}
sup {
/* Move the superscripted text up */
top: -0.5em;
}
sub {
/* Move the subscripted text down, but only
half as far down as the superscript moved up */
bottom: -0.25em;
}
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