关于固定表头 下拉框藏不起来的问题 那位高手帮解决下!
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN " "http://www.w3c.org/TR/1999/REC-html401-19991224/loose.dtd ">
<HTML > <HEAD>
<STYLE type=text/css>
.tScroll {
BORDER-RIGHT: black 1px solid; BORDER-TOP: black 1px solid; OVERFLOW-X: hidden; OVERFLOW: scroll; BORDER-LEFT: black
1px solid; CURSOR: default; BORDER-BOTTOM: black 1px solid; HEIGHT: 100px; BACKGROUND-COLOR: #ffffff
}
TR.tableHead {
POSITION: relative; HEIGHT: 16px; BACKGROUND-COLOR: #a4b6d7; TEXT-ALIGN: left
}
</STYLE>
</HEAD>
<BODY >
<DIV class=tScroll id=tC>
<TABLE cellSpacing=0 cellPadding=0 border=1 width= "98% ">
<TR class=tableHead >
<TD > haha </TD>
<TD > haha </TD>
<TD > haha </TD>
<TD > haha </TD>
<TD > haha </TD>
</TR>
<TR >
<TD > <SELECT name=gd1> <OPTION value=haha > haha </OPTION> </SELECT> </TD>
<TD > <SELECT name=gd1> <OPTION value=haha > haha </OPTION> </SELECT> </TD>
<TD > <SELECT name=gd1> <OPTION value=haha > haha </OPTION> </SELECT> </TD>
<TD > <SELECT name=gd1> <OPTION value=haha > haha </OPTION> </SELECT> </TD>
<TD > <SELECT name=gd1> <OPTION value=haha > haha </OPTION> </SELECT> </TD>
<TR >
<TD > <SELECT name=gd1> <OPTION value=haha > haha </OPTION> </SELECT> </TD>
<TD > <SELECT name=gd1> <OPTION value=haha > haha </OPTION> </SELECT> </TD>
<TD > <SELECT name=gd1> <OPTION value=haha > haha </OPTION> </SELECT> </TD>
<TD> <SELECT name=gd1> <OPTION value=haha > haha </OPTION> </SELECT> </TD>
<TD > <SELECT name=gd1> <OPTION value=haha > haha </OPTION> </SELECT> </TD>
</TR>
<TR >
<TD > <SELECT name=gd1> <OPTION value=haha > haha </OPTION> </SELECT> </TD>
<TD > <SELECT name=gd1> <OPTION value=haha > haha </OPTION> </SELECT> </TD>
&n