我正在尝试在我的网站中实现滚动到顶部功能:www.arrow-tvseries.com。
在网站上可以看到“按钮”,但它不能正常工作,因为单击它时它不会滚动到页面顶部。此外,我希望“滚动到顶部按钮”在向下滚动时可见,比如页面的一半。
这是javascript代码:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function() {
$(window).scroll(function() {
if($(this).scrollTop() != 200) {
$('#backtotop').fadeIn();
} else {
$('#backtotop').fadeOut();
}
});
$('#backtotop').click(function() {
$('body,html').animate({scrollTop:0},800);
});
});
</script>
HTML 代码(头部标签):
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/html4/frameset.dtd">
<html xmlns:fb="http://www.facebook.com/2008/fbml">
<head>
<title>Arrow-TvSeries - Home</title>
<link rel="stylesheet" type="text/css" href="style.css">
<!--back to top links-->
<link rel="stylesheet" type="text/css" href="back_to_top.css">
<script src="/scripts/back_to_top.js" type="text/javascript"></script>
<!--end of back to top links-->
<meta property="fb:admins" content="{793705343}"/>
<!--Google Analytics-->
<script type="text/javascript">
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-40124321-1', 'arrow-tvseries.com');
ga('send', 'pageview');
</script>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<meta name="description" content="Arrow Tv Show">
<meta name="keywords" content="arrow, tv show, amel, stephen amell, katie cassidy, oliver, oliver queen, queen">
<meta name="author" content="Ståle Refsnes">
<meta charset="UTF-8">
<!--IPAD setting-->
<meta name="viewport" content="width = 730, initial-scale=0.70, minimum-scale = 0.5, maximum-scale = 1.25"/>
</head>
CSS 代码:
#backtotop {
cursor : pointer;
/*display : none;*/
margin : 0px 0px 0px 370px;
position : fixed;
bottom : 10px;
font-size : 90%;
padding : 10px;
width : 100px;
text-align : center;
background-color : #000;
border-radius : 8px;
-webkit-border-radius : 8px;
-moz-border-radius : 8px;
filter: alpha(opacity=60);
-khtml-opacity : 0.6;
-moz-opacity : 0.6;
opacity : 0.6;
color : #FFF;
font-size : 14px;
z-index : 10000;
font-family: arial;
}
#backtotop:hover {
filter : alpha(opacity=90);
-khtml-opacity : 0.9;
-moz-opacity : 0.9;
opacity : 0.9;
}
如果您需要更多代码或信息,请随时告诉我。
谢谢