本文實例講述了js+CSS實現模擬select控件的下拉菜單效果。分享給大家供大家參考。具體如下：
這是一個JS+CSS技術實現的Select控件效果，模擬出來的，比默認的Select更漂亮，有了這個模板，你修改Select就更方便了，由此你也可以將其制作成CSS下拉菜單，在兼容性方面暫未測試，在IE8下沒問題。
運行效果截圖如下：
在線演示地址如下：
http://demo.VeVB.COm/js/2015/js-css-select-control-style-codes/
具體代碼如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>模擬select控件</title><style> html,body{height:100%;overflow:hidden;}body,div,form,h2,ul,li{margin:0;padding:0;}ul{list-style-type:none;}body{background:#23384e;font:12px/1.5 /5fae/8f6f/96c5/9ed1;}#search,#search form,#search .box,#search .select,#search a{background:url(images/search.jpg) no-repeat;}#search,#search .box,#search form{height:34px;}#search{position:relative;width:350px;margin:10px auto;}#search .box{background-position:right 0;}#search form{background-repeat:repeat-x;background-position:0 -34px;margin:0 20px 0 40px;}#search .select{float:left;color:#fff;width:190px;height:22px;cursor:pointer;margin-top:4px;line-height:22px;padding-left:10px;background-position:0 -68px;}#search a{float:left;width:80px;height:24px;color:#333;letter-spacing:4px;line-height:22px;text-align:center;text-decoration:none;background-position:0 -90px;margin:4px 0 0 10px;}#search a:hover{color:#f60;background-position:-80px -90px;}#search .sub{position:absolute;top:26px;left:40px;color:#fff;width:198px;background:#2b2b2b;border:1px solid #fff;display:none;}#search .sub li{height:25px;line-height:24px;cursor:pointer;padding-left:10px;margin-bottom:-1px;border-bottom:1px dotted #fff;}#search .sub li.hover{background:#8b8b8b;}</style><script type="text/javascript"> window.onload = function (){ var oSelect = document.getElementsByTagName("span")[0]; var oSub = document.getElementsByTagName("ul")[0]; var aLi = oSub.getElementsByTagName("li"); var i = 0; oSelect.onclick = function (event) { var style = oSub.style; style.display = style.display == "block" ? "none" : "block"; //阻止事件冒泡 (event || window.event).cancelBubble = true }; for (i = 0; i < aLi.length; i++) { //鼠標劃過 aLi[i].onmouseover = function () { this.className = "hover" }; //鼠標離開 aLi[i].onmouseout = function () { this.className = ""; }; //鼠標點擊 aLi[i].onclick = function () { oSelect.innerHTML = this.innerHTML } } document.onclick = function () { oSub.style.display = "none"; };};</script></head><body><div id="search"> <div class="box"> <form> <span class="select">請選擇游戲名稱</span> <a href="javascript:;">搜索</a> </form> </div> <ul class="sub"> <li>地下城與勇士</li> <li>魔獸世界（國服）</li> <li>魔獸世界（臺服）</li> <li>熱血江湖</li> <li>大話西游II</li> <li>QQ幻想世界</li> </ul></div></body></html>希望本文所述對大家的javascript程序設計有所幫助。
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