1左侧或者右侧的悬浮广告。
css样式：
*{padding: 0;margin: 0;} .fl{float:left;display: inline;} .fr{float: right;display: inline;} .clearfix{*zoom: 1;} .clearfix:after{ display: block; content: ""; height: 0;line-height: 0;visibility: hidden; clear: both;} /*tab 切换*/ .tab_title{ line-height: 30px; border-bottom: 1px solid #ccc; width: 360px;margin: 0 auto;} .tab_title a{ display: inline-block; font-size: 16px;color: #333; text-decoration: none; margin-right: 20px;} .tab_title a.active{color: red;} .tab_content{width: 340px; padding:5px 10px;margin: 0 auto; border: 1px solid #ccc; height: 120px;} /*文字滚动*/ .moveScroll{ width: 360px; height: 120px; border: 1px solid #ccc; margin: 50px auto;} .moveparent{ width: 330px;height: 90px;overflow: hidden; margin:15px auto;} .moveScroll .content{ color: #333; } /*文本输入框*/ .inputText{ width: 320px; padding:10px; line-height: 22px;margin: 10px auto;display: block;color: #999;} /*幻灯片*/ .wrapper { width: 324px; height: 325px; _height: 321px; position: relative; z-index: 1; margin: 20PX auto; } .wrapper .main { width: 324px; height: 222px; overflow: hidden; } .wrapper li { float: left; display: inline; } .wrapper ul img { width: 324px; height: 222px; position: relative; z-index: 1; } .wrapper ul span { position: absolute; display: block; text-align: center; width: 324px; height: 20px; overflow: hidden; bottom: 10px; left: 0; } .wrapper ol { margin-right: -4px; height: 58px; *zoom: 1; } .wrapper ol:after { display: block; content: ""; line-height: 0; height: 0; visibility: hidden; clear: both; } .wrapper ol img { width: 78px; height: 52px; margin: 6px 4px 0 0; } .wrapper ol li { opacity: 0.5; filter: alpha(opacity=50); cursor: pointer; } .wrapper ol .active { opacity: 1; filter: alpha(opacity=100); }
html代码：
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title>简jQuery左右对称浮动广告代码</title> <link href="https://www.jb51.net/css/style.css" /> </head> <body> <div></div> <!-- 代码部分begin --> <div></div> <script src="https://www.jb51.net/js/jquery.js" ></script> <script src="https://www.jb51.net/js/floatAd.js" ></script> <script> window.onload = function(){ var ad2 = new FloatAd({ nodeLink : "<a href='https://www.jb51.net/广告连接地址'><img src='https://www.jb51.net/广告图片' border=0 /></a>" , floatObj : "floatleft", x : 10, y : 400, locate : "left" }); ad2.play(); } </script> <!-- 代码部分end --> </body> </html>
js文件除引入jquery外(要问我jquery是什么，请出门左转)还需要：
var FloatAd = function(obj){ var mainNode = $("." + obj.main)[0]; if(obj.nodeLink && (typeof obj.nodeLink == "string")){ var newFloatObj = document.createElement("div"); newFloatObj.id = obj.floatObj; newFloatObj.style.position = "absolute"; newFloatObj.style.zIndex = 10; newFloatObj.innerHTML = obj.nodeLink; document.body.appendChild(newFloatObj); } this.ad = document.getElementById(obj.floatObj); this.main = document.getElementById(obj.main)||mainNode; this.x = obj.x; this.y = obj.y; this.locate = obj.locate; this.space = obj.space; var that = this; this.play = function(){ setInterval(function(){ that.calculate(); },10); }; } FloatAd.prototype = { constructor : FloatAd, calculate : function(){ var obj_x = this.x, obj_y = this.y, main_offsetLeft = document.documentElement.scrollLeft||document.body.scrollLeft, main_offsetTop = document.documentElement.scrollTop||document.body.scrollTop; if(this.main){ if(this.locate == "left"){ obj_x = this.main.offsetLeft - this.ad.offsetWidth - this.space; }else if(this.locate == "right"){ obj_x = this.main.offsetLeft + this.main.offsetWidth + this.space; } if(this.ad.offsetLeft != main_offsetLeft + obj_x){ var dx = (main_offsetLeft + obj_x - this.ad.offsetLeft)*0.08; dx = (dx > 0 ? 1 : -1)*Math.ceil(Math.abs(dx)); this.ad.style.left = this.ad.offsetLeft + dx + "px"; } }else{ if(this.locate == "left"){ this.ad.style.left = obj_x + "px"; }else if(this.locate == "right"){ this.ad.style.right = obj_x +"px"; } } if(this.ad.offsetTop != main_offsetTop + obj_y){ var dy = (main_offsetTop + obj_y - this.ad.offsetTop)*0.08; dy = (dy > 0 ? 1 : -1)*Math.ceil(Math.abs(dy)); this.ad.style.top = this.ad.offsetTop + dy + "px"; } } }
这是自己在用到这种效果的时候整理出来的，copy网上的案例，进行整理，方便大家使用。
2 全屏漂浮案例：飘窗！
css文件：
#img1{ z-index: 100; left: 2px; width: 59px; position: absolute; top: 43px; height: 61px; visibility: visible; }
html文件