參考：
<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>左右可拖動的內容顯示區</title> <link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css"> <style> ul,li{margin:0;padding:0;} body{font:14px/1.5 Arial;color:#666;} #box{position:relative;width:600px;height:400px;border:2px solid #000;margin:10px auto;overflow:hidden;} #box ul{list-style-position:inside;margin:10px;} #top,#bottom{color:#FFF;width:300px;height:400px;overflow:hidden;} #top{background:green; float:left;} #bottom{background:skyblue;float:right} #line{position:absolute;top:0;left:50%;height:100%;width:4px;overflow:hidden;background:red;cursor:w-resize;} /*p { cursor: text; } !* css注釋： 設置鼠標移動到html p對象時鼠標變為文本選擇樣式 *!*/ /*a { cursor: pointer; } !* css注釋： 設置鼠標移動到a超鏈接對象時鼠標變為手指形狀（鏈接選擇） *!*/ /*body { cursor: url("小圖片地址")} !* 設置鼠標指針默認為一個小圖片 *!*/ </style> <script> function $(id) { return document.getElementById(id) } window.onload = function() { var oBox = $("box"), oTop = $("top"), oBottom = $("bottom"), oLine = $("line"); oLine.onmousedown = function(e) { var disX = (e || event).clientX; oLine.left = oLine.offsetLeft; document.onmousemove = function(e) { var iT = oLine.left + ((e || event).clientX - disX); var e=e||window.event,tarnameb=e.target||e.srcElement; var maxT = oBox.clientWight - oLine.offsetWidth; oLine.style.margin = 0; iT < 0 && (iT = 0); iT > maxT && (iT = maxT); oLine.style.left = oTop.style.width = iT + "px"; oBottom.style.width = oBox.clientWidth - iT + "px"; $("msg").innerText='top.width:'+oLine.style.width+'---bottom.width:'+oBottom.style.width+'---oLine.offsetLeft:'+oLine.offsetLeft+'---disX:'+disX+'---tarnameb:'+tarnameb.tagName; return false }; document.onmouseup = function() { document.onmousemove = null; document.onmouseup = null; oLine.releaseCapture && oLine.releaseCapture() }; oLine.setCapture && oLine.setCapture(); return false }; }; </script> </head> <body> <center>左右拖動紅條改變顯示區域寬度<span id="msg"></span></center> <div id="box"> <div id="top"> <ul> <li><a href="#" target="_blank">jQuery初學實例代碼集</a></li><li><a href="#" target="_blank">100多個ExtJS應用初學實例集</a></li> <li><a href="#" target="_blank">基於jQuery的省、市、縣三級級聯菜單</a></li> <li><a href="#" target="_blank">一個類似QQ網的JS相冊展示特效</a></li> <li><a href="#" target="_blank">eWebEditor v4.60 最新通用精簡版</a></li> <li><a href="#" target="_blank">FCKeditor 2.6.4.1 網頁編輯器</a></li> <li><a href="#" target="_blank">jQuery平滑圖片滾動</a></li> <li><a href="#" target="_blank">Xml+JS省市縣三級聯動菜單</a></li> <li><a href="#" target="_blank">jQuery 鼠標滑過鏈接文字彈出層提示的效果</a></li> <li><a href="#" target="_blank">JS可控制的圖片左右滾動特效（走馬燈）</a></li> </ul> </div> <div id="bottom"> <ul> <li><a href="#" target="_blank">網頁上部大Banner廣告特效及圖片橫向滾動代碼</a></li> <li><a href="#" target="_blank">FlexSlider網頁廣告、圖片焦點圖切換插件</a></li> <li><a href="#" target="_blank">兼容IE，火狐的JavaScript圖片切換</a></li> <li><a href="#" target="_blank">jQuery仿ios無線局域網WIFI提示效果（折疊面板）</a></li> <li><a href="#" target="_blank">TopUp js圖片展示及彈出層特效代碼</a></li> <li><a href="#" target="_blank">jQuery仿Apple蘋果手機放大鏡閱讀效果</a></li> <li><a href="#" target="_blank">Colortip 文字title多樣式提示插件</a></li> <li><a href="#" target="_blank">網頁換膚，Ajax網頁風格切換代碼集</a></li> <li><a href="#" target="_blank">超強大、漂亮的藍色網頁彈出層效果</a></li> <li><a href="#" target="_blank">jQuery 圖像預覽功能的代碼實現</a></li> </ul> </div> <div id="line"></div> </div> </body> </html>