<script type="text/javascript">
var margintop = $("#header").offset().top
//var marginleft = $("#header_cont").offset().left;
//alert(margintop)
//alert(marginleft)
$(window).scroll(function() {
var scrtop = $(document).scrollTop();
if(scrtop<margintop){
$('#header').css({
position: 'absolute',
top: margintop,
left:'0'
});
return false;
}
$('#header').css({
position: 'absolute',
top: scrtop,
left:'0'
});
});
</script>
原创文章，作者：ItWorker，如若转载，请注明出处：https://blog.ytso.com/tech/pnotes/8589.html