<!doctype html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<title>float show</title>
<style>
*{margin:0;padding:0}
div{height:800px; position:relative;border-top:1px solid red;padding-top:10px;}
.flow-left{position:fixed; top:45px; z-index:999;display:none;}
.flow-left{background:url(images/float_left.png) no-repeat 0 0;width:144px;height:560px;padding-top:42px;left:0px;}
.flow-left a {width:100%; height:34px; display:block;}
</style>
</head>
<body>
<div class="flow-left" id="flow-left">
<a href="#"></a>
</div>
<div>
<img src="images/logo1.png" _src="images/GB_night_r4_c1.jpg">
</div>
<div>
<img src="images/logo1.png" _src="images/GB_night_r4_c1.jpg">
</div>
<div>
<img src="images/logo1.png" _src="images/GB_night_r4_c1.jpg">
</div>
<div>
<img src="images/logo1.png" _src="images/GB_night_r4_c1.jpg">
</div>
<!--浮标出现层-->
<div id="fl_yushou">
<a>show div</a><img src="images/logo1.png" _src="images/GB_night_r4_c1.jpg">
</div>
<div>
<img src="images/logo1.png" _src="images/GB_night_r4_c1.jpg">
</div>
<div>
<img src="images/logo1.png" _src="images/GB_night_r4_c1.jpg">
</div>
</body>
</html>
<script type="text/javascript">
$(function(){
// 监听滚动事件
$(window).scroll(function(){
// 获得div的高度
var h = $("#fl_yushou").offset().top;
if($(this).scrollTop()>h && $(this).scrollTop() < h+100){
// 滚动到指定位置
$("#flow_left").show();
} else {
$("#flow_left").hide();
}
});
})
</script>
代入代码中 不出现结果,不知道问题在哪?
对 就是这个意思 这段代码代入进去调试效果不出来 鼠标滚动到div id='fl_yushou' 时 没有出现div id='flow_left'的结果
追答你的flow-left上下都不一致,jquery也没引入。
<!doctype html>