Calendar margin setup

[NKamat]

have added a datefield using format flash on my application.
<cfform style="margin:auto" name="date" format="flash" id="date">
<cfinput type="datefield" name="datefield" label="Date available to
begin employment" validateat="onSubmit" required="yes"
value="#LSDateFormat(Recordset1.DateAvailable,'DD/MM/YY')#" size="150"
width="100" height="20">
</cfform>

Two things:
This information field does not show up in IE at all.
In firefox, there is a gap (whitspace)between this line and the next row of
data. The gap is equal to the height of the calendar. How do I remove this gap.
I thought will add margin to the form but seems like it did not help.
Thanks