Mã:<html> <head><script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script></head> <body> <style> .ad_float {background:#ddd;position:absolute;height:300px} #content {width:980px;height:1500px;margin:0 auto;border:solid 1px #666}</style> <div id="ad_float_left" class="ad_float"><div>LEFT</div></div> <div id="ad_float_right" class="ad_float"><div>RIGHT</div></div> <div id="content">CONTENT</div> <script> $(document).ready(function() { Ad_Init(); $(window).bind("resize", Ad_Init); }); function Ad_Init() { if ($(window).width() > 1300) { $(".ad_float").width(($(window).width() - 1010) / 2); $("#ad_float_left").css("left", 2); $("#ad_float_left").show(); $("#ad_float_right").css("left", $(window).width() - $("#ad_float_right").width() - 2); $("#ad_float_right").show(); $(window).bind("scroll", function() { if (!vScroll) { vScroll = true; window.setTimeout(Ad_Float, 330); } }); } else { $(".ad_float").hide(); $(window).unbind("scroll"); } } var vScroll; function Ad_Float() { var a = $(document).scrollTop(); $("#ad_float_left").animate({ top: a }, 500); $("#ad_float_right").animate({ top: a }, 500); vScroll = false; } </script> </body> </html>
code khá ngon mình tìm khá lâu rùi share lên đề phòng quên
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