Thank your advice. I modified my code to:
<div id="header">
...
<div style="clear:both;"></div>
</div>
but it has no effect. Is it because the header div consists only of
floated blocks? I uses Firefox 1.5.
On 5/14/06, Philippe Wittenbergh <[EMAIL PROTECTED]> wrote:
>
>
> On May 14, 2006, at 10:16 AM, ray wrote:
>
> > I write the following code:
> > xhtml:
> > <body>
> > <div id="header">
> > <h1>Welcome to site</h1>
> > <div>
> > <a href="">site in English</a>
> > hello,please <a href="">login</a> or <a
> > href="">register</a>
> > </div>
> > </div>
> > </body>
> >
> > css:
> > #header {
> > background-color: #FFE4B5;
> > }
> > #header h1 {
> > float: left;
> > margin: 0;
> > }
> > #header div {
> > float: right;
> > }
> >
> > The problem is that the header div's background color is not
> > displayed. It
> > found that it's height is zero, and padding is also zero. I refer
> > to CSS2
> > specification, it says that height's default value is auto. I think
> > it means
> > that the height depends on its content's height, i.e. the h1 and div's
> > height in this case. I don't want to specify the height explictly.
> > What's
> > wrong with me? How can I solve it? TIA.
>
> The height is 0 because the contents of your #header consists only of
> floated blocks. Those are by definition removed from the flow, and
> have no effect on the height of your #header div.
>
> I guess you want that #header to show that background colour. You'll
> need to clear the floats inside it, force that #header to stay 'open'.
> Here is a good solution:
> <http://www.positioniseverything.net/easyclearing.html>
>
> Philippe
> ---
> Philippe Wittenbergh
> <http://emps.l-c-n.com>
>
>
>
>
>
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