JQ 最少代码实现中部浮窗功能-优快云博客

偶实现的代码

<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
<title></title>
<link rel="stylesheet" href="base.css" />
<script type="text/javascript" src="jquery-1.10.1.min.js" ></script>
</head>
<body>
<div style="height:10000px;"></div>
<style>.fix-center{ height:120px; width:219px; display:none; position:fixed; }</style>
<div id="fixCenter" class="fix-center">
    <img src="fixCenter.jpg" width="219" height="120" usemap="#fixCenterMap">
    <map name="fixCenterMap" id="fixCenterMap">
    	<area shape="rect" coords="175,0,219,30" href="javascript:void(0);" id="closeFixCenter" />
        <area shape="rect" coords="0,30,219,94" href ="###1" target="_blank" />
        <area shape="rect" coords="0,94,219,120" href ="###2" target="_blank" />
    </map>
</div>
<script>
$(function(){
	fixCenter();
});
function fixCenter(){
	var fid = $('#fixCenter');
	var h = $(window).height();
	var w = $(window).width();
	var l = (w/2) - parseInt(fid.css('width')) / 2;
	var t = (h/2) - parseInt(fid.css('height')) / 2;
	fid.css({'left': (l) + 'px', 'top': (t) + 'px' }).fadeIn(600);
	$('#closeFixCenter').click(function(){
		fid.fadeOut(600).delay(20000).fadeIn(600);
	});
	$(window).resize(function(){
		h = $(window).height();
		w = $(window).width();
		l = (w/2) - parseInt(fid.css('width')) / 2;
		t = (h/2) - parseInt(fid.css('height')) / 2;
		fid.css({'left':(l) + 'px', 'top': (t) + 'px' }); 	
	});
}
</script>
</body>
</html>

结果群友（小硕）实现更短的代码：

function fixCenter(){
	var fid = $('#fixCenter');
	var h = $(window).height();
	var w = $(window).width();
	var l = (w/2) - parseInt(fid.width()) / 2;
	var t = (h/2) - parseInt(fid.height()) / 2;
	fid.css({'left': (l) + 'px', 'top': (t) + 'px' }).fadeIn(600);
	$('#closeFixCenter').click(function(){
		fid.fadeOut(600).delay(20000).fadeIn(600);
	});
	$(window).resize(function(){
		h = $(window).height();
		w = $(window).width();
		l = (w/2) - parseInt(fid.width()) / 2;
		t = (h/2) - parseInt(fid.height()) / 2;
		fid.css({'left':(l) + 'px', 'top': (t) + 'px' }); 	
	});
}

效果图：