div始终在底部
<style type="text/css">
body{margin:0;padding:0; }
html,body{height:100%;}
div{width:100%;height:100px;background:#fc9;position:absolute;top:100%;margin-top:-100px}
</style>
<div></div>
底部多高它的margin-top 就负多少。保证不留空白。
$(document).ready(function () {
var heighth = (document.body.clientHeight - 59);
$(".container").height(heighth); //= window.screen.height + 'px';
// alert(window.screen.height);
})
<div class="container" style=" ">
</div>
<div style=" height:59px"></div>
#footer {
position:fixed;
left:auto;
right:auto;
bottom:0;
_position:absolute;
_top:expression(document.documentElement.clientHeight + document.documentElement.scrollTop - this.offsetHeight);
z-index: 1000;
font-size:11px;
line-height:28px;
height:28px;
background:url(../Office2007/footid_bg.jpg) repeat-x top;
padding:2px 15px 0 15px;
width:970px;
margin:0 auto;
}