css3下拉工具条特效代码

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以下是 css3下拉工具条特效代码的示例演示效果:

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部分效果截图:

HTML代码(index.html):

<!DOCTYPE HTML>
<html lang="en-US">
<head>
	<meta charset="UTF-8">
	<title>css3下拉工具条</title>
	<script type="text/javascript" charset="UTF-8" src="js/prefixfree.min.js"></script>
	<link rel="stylesheet" type="text/css" href="css/base.css" media="all" />
	<style>
body {
    background:url("bg.jpg") center center no-repeat fixed #333;
    background-size: 100% 100%;
}

.demo {
    text-align: center;
    min-height: 200px;
}
.dropdownlist {
	display: inline-block;
	margin: 50px;
}
.dropdownlist li {
    list-style-type:none;
    position:relative;
}
.dropdownlist li a {
    font-size:20px;
    font-family:"signal-icon";
    text-align:center;
    line-height:48px;
    color:#fff;
    display:block;
    width:58px;
    height:48px;
    background-image:-*-linear-gradient(top,rgb(105,96,106),rgb(80,73,80));
    transition:all 500ms linear;
    text-decoration:none;
}
.list-wrapper {
    border-radius:4px;
    border:3px solid rgba(243,233,229,0.2);
    box-shadow:0 0 0 1px rgba(243,233,229,0.6);
    position:relative;
}
.dropdownlist li[class^="list-"] {
    padding-bottom:20px;
}
.dropdownlist li[class^="list-"] .list-wrapper > a {
    font-size:30px;
    border:1px solid rgb(63,57,66);
    border-radius:3px;
    box-shadow:inset 0 1px 0 rgb(132,127,137),
               inset 0 -1px 0 rgb(73,66,71),
               inset 0 0 0 1px rgb(106,98,111),
               0 1px 0 rgb(137,121,118),
               0 2px 0 rgb(163,144,141),
               0 0 0 1px rgb(175,155,151);
                       
}
.dropdownlist li:nth-child(1)[class^="item-"] a {
    box-shadow: inset 0 1px 0 rgb(132,127,137),
    			inset 0 -1px 0 rgb(73,66,71),
    			inset 0 0 0 1px rgb(106,98,111),
                -1px 0 0 rgba(110,93,101,0.2),
                1px 0 0 rgba(110,93,101,0.2),
                0 -1px 0 rgba(110,93,101,0.2);
}
.dropdownlist li:nth-child(2)[class^="item-"] a {
    box-shadow: inset 0 1px 0 rgb(132,127,137),
    			inset 0 -1px 0 rgb(73,66,71),
    			inset 0 0 0 1px rgb(106,98,111),
                -1px 0 0 rgba(110,93,101,0.4),
                1px 0 0 rgba(110,93,101,0.4);
}
.dropdownlist li:nth-child(3)[class^="item-"] a {
    box-shadow: inset 0 1px 0 rgb(132,127,137),
    			inset 0 -1px 0 rgb(73,66,71),
    			inset 0 0 0 1px rgb(106,98,111),
                -1px 0 0 rgba(110,93,101,0.6),
                1px 0 0 rgba(110,93,101,0.6),
                0 1px 0 rgba(89,75,84,0.8),
                0 2px 0 rgba(89,75,84,0.6),
                0 3px 0 rgba(89,75,84,0.4);
}

.dropdownlist li[class^="item-"] > a {
    border:1px solid rgb(64,57,66);
    border-bottom:none;
}
.dropdownlist li:last-child[class^="item-"] > a {
    border:1px solid rgb(64,57,66);
}
.dropdownlist li:first-child[class^="item-"] > a{
    border-radius:3px 3px 0 0;
}
.dropdownlist li:last-child[class^="item-"] > a {
    border-radius:0 0 3px 3px;
}
.dropdownlist li[class^="item-"] > a:visited {
    color:#033e6b;
}

.dropdownlist li a:hover {
     background-image:-*-linear-gradient(top,rgb(90,80,80),rgb(65,68,65));
     cursor:pointer;
}

.dropdownlist li[class^="list-"] ul {
    position:absolute;
    left:-3px;
    top:130%;
    border-radius:4px;
    padding:0;
    border:none;
    transition: all 500ms ease-in;
    border:3px solid rgba(243,233,229,0.2);
    box-shadow:0 0 0 1px rgba(243,233,229,0.6);
    display: none;
}
.dropdownlist li[class^="list-"] ul:before {
    content:'';
    border-left:5px solid transparent; border-right:5px solid transparent; border-top:5px solid transparent; border-bottom:5px solid rgba(243,233,229,0.4); position:absolute;
    width:1px;
    height:1px;
    left:50%;
    top:-15px;
    margin-left:-5px
}
.dropdownlist li[class^="list-"]:hover ul {
    display:block;
}
@font-face {
    font-family: 'signal-icon';
    src:url('fonts/signal-icon.eot');
    src:url('fonts/signal-icon.eot?#iefix') format('embedded-opentype'),
        url('fonts/signal-icon.svg#signal-icon') format('svg'),
        url('fonts/signal-icon.woff') format('woff'),
        url('fonts/signal-icon.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}
	</style>
</head>
<body>

<div class="page">
	<header id="header">
		<hgroup class="white">
			<h1>CSS3制作下拉工具条</h1>
			<h2>作者：<a href="http://weibo.com/zhp1991" target="_blank">白牙</a>(如有更好建议或疑问请加群：1041263)</h2>
		</hgroup>
	</header>
	<section class="demo">
		<ul class="dropdownlist">
	        <li class="list-1">
	            <div class="list-wrapper">
	                <a href="#">#</a>
	                <ul>
	                    <li class="item-1"><a href="#1">"</a></li>
	                    <li class="item-2"><a href="#2">$</a></li>
	                    <li class="item-3"><a href="#3">!</a></li>  
	                </ul>
	            </div>
	        </li>
	    </ul>
	</section>
</div>
</body>
</html>

JS代码(prefixfree.min.js):

/** * StyleFix 1.0.3 & PrefixFree 1.0.7 * @author Lea Verou * MIT license */
(function(){
	function t(e,t){
	return[].slice.call((t||document).querySelectorAll(e))}
if(!window.addEventListener)return;
	var e=window.StyleFix={
	link:function(t){
	try{
	if(t.rel!=="stylesheet"||t.hasAttribute("data-noprefix"))return}
catch(n){
	return}
var r=t.href||t.getAttribute("data-href"),i=r.replace(/[^\/]+$/,""),s=t.parentNode,o=new XMLHttpRequest,u;
	o.onreadystatechange=function(){
	o.readyState===4&&u()}
;
	u=function(){
	var n=o.responseText;
	if(n&&t.parentNode&&(!o.status||o.status<400||o.status>600)){
	n=e.fix(n,!0,t);
	if(i){
	n=n.replace(/url\(\s*?((?:"|')?)(.+?)\1\s*?\)/gi,function(e,t,n){
	return/^([a-z]{
	3,10}
:|\/|#)/i.test(n)?e:'url("'+i+n+'")'}
);
	var r=i.replace(/([\\\^\$*+[\]?{
}
.=!:(|)])/g,"\\$1");
	n=n.replace(RegExp("\\b(behavior:\\s*?url\\('?\"?)"+r,"gi"),"$1")}
var u=document.createElement("style");
	u.textContent=n;
	u.media=t.media;
	u.disabled=t.disabled;
	u.setAttribute("data-href",t.getAttribute("href"));
	s.insertBefore(u,t);
	s.removeChild(t);
	u.media=t.media}
}
;
	try{
	o.open("GET",r);
	o.send(null)}
catch(n){
	if(typeof XDomainRequest!="undefined"){
	o=new XDomainRequest;
	o.onerror=o.onprogress=function(){
}
;
	o.onload=u;
	o.open("GET",r);
	o.send(null)}
}
t.setAttribute("data-inprogress","")}
,styleElement:function(t){
	if(t.hasAttribute("data-noprefix"))return;
	var n=t.disabled;
	t.textContent=e.fix(t.textContent,!0,t);
	t.disabled=n}
,styleAttribute:function(t){
	var n=t.getAttribute("style");
	n=e.fix(n,!1,t);
	t.setAttribute("style",n)}
,process:function(){
	t('link[rel="stylesheet"]:not([data-inprogress])').forEach(StyleFix.link);
	t("style").forEach(StyleFix.styleElement);
	t("[style]").forEach(StyleFix.styleAttribute)}
,register:function(t,n){
	(e.fixers=e.fixers||[]).splice(n===undefined?e.fixers.length:n,0,t)}
,fix:function(t,n,r){
	for(var i=0;
	i<e.fixers.length;
	i++)t=e.fixers[i](t,n,r)||t;
	return t}
,camelCase:function(e){
	return e.replace(/-([a-z])/g,function(e,t){
	return t.toUpperCase()}
).replace("-","")}
,deCamelCase:function(e){
	return e.replace(/[A-Z]/g,function(e){
	return"-"+e.toLowerCase()}
)}
}
;
	(function(){
	setTimeout(function(){
	t('link[rel="stylesheet"]').forEach(StyleFix.link)}
,10);
	document.addEventListener("DOMContentLoaded",StyleFix.process,!1)}
)()}
)();
	(function(e){
	function t(e,t,r,i,s){
	e=n[e];
	if(e.length){
	var o=RegExp(t+"("+e.join("|")+")"+r,"gi");
	s=s.replace(o,i)}
return s}
if(!window.StyleFix||!window.getComputedStyle)return;
	var n=window.PrefixFree={
	prefixCSS:function(e,r,i){
	var s=n.prefix;
	n.functions.indexOf("linear-gradient")>-1&&(e=e.replace(/(\s|:|,)(repeating-)?linear-gradient\(\s*(-?\d*\.?\d*)deg/ig,function(e,t,n,r){
	return t+(n||"")+"linear-gradient("+(90-r)+"deg"}
));
	e=t("functions","(\\s|:|,)","\\s*\\(","$1"+s+"$2(",e);
	e=t("keywords","(\\s|:)","(\\s|;
	|\\}
|$)","$1"+s+"$2$3",e);
	e=t("properties","(^|\\{
	|\\s|;
	)","\\s*:","$1"+s+"$2:",e);
	if(n.properties.length){
	var o=RegExp("\\b("+n.properties.join("|")+")(?!:)","gi");
	e=t("valueProperties","\\b",":(.+?);
	",function(e){
	return e.replace(o,s+"$1")}
,e)}
if(r){
	e=t("selectors","","\\b",n.prefixSelector,e);
	e=t("atrules","@","\\b","@"+s+"$1",e)}
e=e.replace(RegExp("-"+s,"g"),"-");
	e=e.replace(/-\*-(?=[a-z]+)/gi,n.prefix);
	return e}
,property:function(e){
	return(n.properties.indexOf(e)?n.prefix:"")+e}
,value:function(e,r){
	e=t("functions","(^|\\s|,)","\\s*\\(","$1"+n.prefix+"$2(",e);
	e=t("keywords","(^|\\s)","(\\s|$)","$1"+n.prefix+"$2$3",e);
	return e}
,prefixSelector:function(e){
	return e.replace(/^:{
	1,2}
/,function(e){
	return e+n.prefix}
)}
,prefixProperty:function(e,t){
	var r=n.prefix+e;
	return t?StyleFix.camelCase(r):r}
}
;
	(function(){
	var e={
}
,t=[],r={
}
,i=getComputedStyle(document.documentElement,null),s=document.createElement("div").style,o=function(n){
	if(n.charAt(0)==="-"){
	t.push(n);
	var r=n.split("-"),i=r[1];
	e[i]=++e[i]||1;
	while(r.length>3){
	r.pop();
	var s=r.join("-");
	u(s)&&t.indexOf(s)===-1&&t.push(s)}
}
}
,u=function(e){
	return StyleFix.camelCase(e)in s}
;
	if(i.length>0)for(var a=0;
	a<i.length;
	a++)o(i[a]);
	else for(var f in i)o(StyleFix.deCamelCase(f));
	var l={
	uses:0}
;
	for(var c in e){
	var h=e[c];
	l.uses<h&&(l={
	prefix:c,uses:h}
)}
n.prefix="-"+l.prefix+"-";
	n.Prefix=StyleFix.camelCase(n.prefix);
	n.properties=[];
	for(var a=0;
	a<t.length;
	a++){
	var f=t[a];
	if(f.indexOf(n.prefix)===0){
	var p=f.slice(n.prefix.length);
	u(p)||n.properties.push(p)}
}
n.Prefix=="Ms"&&!("transform"in s)&&!("MsTransform"in s)&&"msTransform"in s&&n.properties.push("transform","transform-origin");
	n.properties.sort()}
)();
	(function(){
	function i(e,t){
	r[t]="";
	r[t]=e;
	return!!r[t]}
var e={
	"linear-gradient":{
	property:"backgroundImage",params:"red,teal"}
,calc:{
	property:"width",params:"1px + 5%"}
,element:{
	property:"backgroundImage",params:"#foo"}
,"cross-fade":{
	property:"backgroundImage",params:"url(a.png),url(b.png),50%"}
}
;
	e["repeating-linear-gradient"]=e["repeating-radial-gradient"]=e["radial-gradient"]=e["linear-gradient"];
	var t={
	initial:"color","zoom-in":"cursor","zoom-out":"cursor",box:"display",flexbox:"display","inline-flexbox":"display",flex:"display","inline-flex":"display"}
;
	n.functions=[];
	n.keywords=[];
	var r=document.createElement("div").style;
	for(var s in e){
	var o=e[s],u=o.property,a=s+"("+o.params+")";
	!i(a,u)&&i(n.prefix+a,u)&&n.functions.push(s)}
for(var f in t){
	var u=t[f];
	!i(f,u)&&i(n.prefix+f,u)&&n.keywords.push(f)}
}
)();
	(function(){
	function s(e){
	i.textContent=e+"{
}
";
	return!!i.sheet.cssRules.length}
var t={
	":read-only":null,":read-write":null,":any-link":null,"::selection":null}
,r={
	keyframes:"name",viewport:null,document:'regexp(".")'}
;
	n.selectors=[];
	n.atrules=[];
	var i=e.appendChild(document.createElement("style"));
	for(var o in t){
	var u=o+(t[o]?"("+t[o]+")":"");
	!s(u)&&s(n.prefixSelector(u))&&n.selectors.push(o)}
for(var a in r){
	var u=a+" "+(r[a]||"");
	!s("@"+u)&&s("@"+n.prefix+u)&&n.atrules.push(a)}
e.removeChild(i)}
)();
	n.valueProperties=["transition","transition-property"];
	e.className+=" "+n.prefix;
	StyleFix.register(n.prefixCSS)}
)(document.documentElement);

CSS代码(base.css):

@charset "utf-8";@import url("http://www.w3cplus.com/download/reset.css");/* ------------------------------------------------- * common * -------------------------------------------------*/
.page{text-align:left;padding-top:40px;}
.wrap_top_nav{background-color:#333;box-shadow:0 1px 3px rgba(0,0,0,0.25),0 -1px 0 rgba(0,0,0,0.1) inset;height:40px;}
#top_nav{width:1000px;margin:0 auto;position:relative;}
#top_nav a{font-size:16px;line-height:40px;float:left;margin-right:20px;color:#999;text-decoration:none;}
#top_nav a:hover{color:#fff;}
#top_nav li:nth-child(1) a{background-image:url(http://www.w3cplus.com/sites/all/themes/marvin/logo.png);background-position:0 -12px;background-repeat:no-repeat;background-size:68px 60px;padding-left:74px;color:#fff;width:74px;overflow:hidden;}
#read{position:absolute;right:0;top:0;font-family:'����';}
#header{text-align:center;}
#header .white{color:#fff;}
#header .blank{color:#444;}
#header h1{font-size:24px;}
#header h2{font-weight:normal;}
#ad_w3cplus{width:750px;margin:100px auto;text-align:center;}
#ad_w3cplus .grid-ad{float:left;}

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