Javascript 折叠和展开在css中不起作用

我有一个侧栏菜单，有项目主页，画廊，谁是最好的和竞争对手

“画廊”和“谁是最好的，谁工作正常”有一个“折叠”和“展开”下拉列表。在“竞赛”选项卡中有一个下拉列表，列出了本周的热门名单，本周的排行榜还有另外5个项目。我希望当我点击比赛时，这个星期的排行榜会出现，当我点击这个星期的排行榜时，这些项目会出现，而这个排行榜会展开和折叠

HTML:

---

jsFiddle here:

你可以试试这个css，这可能会有用

#nav {

     border-radius:3px;
    -moz-border-radius:3px;
    -webkit-border-radius:3px;
}
#nav, #nav ul, #nav ul ul {
    list-style:none;
    padding:0;
    width:199px;
}
#nav ul, #nav ul ul {
    position:relative;
    z-index:-1;
}
#nav li {
    position:relative;
    z-index:100;
}
#nav ul li, #nav ul ul li {
    margin-top:-23px;

    -moz-transition:  0.4s linear 0.4s;
    -ms-transition: 0.4s linear 0.4s;
    -o-transition: 0.4s linear 0.4s;
    -webkit-transition: 0.4s linear 0.4s;
    transition: 0.4s linear 0.4s;
}
#nav li a {
    background-color:#d4d5d8;
    color:#000;
    display:block;
    font-size:12px;
    font-weight:bold;
    line-height:28px;
    outline:0;
    padding-left:15px;
    text-decoration:none;
}
#nav li a.sub {
    background:#d4d5d8 url("../images/down.gif") no-repeat;
}

#nav li a + img {
    cursor:pointer;
    display:none;
    height:28px;
    left:0;
    position:absolute;
    top:0;
    width:200px;
}
#nav li a img {
    border-width:0px;
    height:24px;
    line-height:28px;
    margin-right:8px;
    vertical-align:middle;
    width:24px;
}
#nav li a:hover {
    background-color:#bcbdc1;
}
#nav ul li a, #nav ul ul li a {
    background-color:#eee;
    border-bottom:1px solid #ccc;
    color:#000;
    font-size:11px;
    line-height:22px;
}
#nav ul li a:hover {
    background-color:#ddd;
    color:#444;
}
#nav ul li a img, #nav ul li ul a img {
    background: url("images/bulb.png") no-repeat;
    border-width:0px;
    height:16px;
    line-height:22px;
    margin-right:5px;
    vertical-align:middle;
    width:16px;
}
#nav ul li:nth-child(odd) a img, #nav ul ul li:nth-child(odd) a img {
    background:url("images/bulb2.png") no-repeat;
}
#nav a.sub:focus {
    background:#bcbdc1;
    outline:0;
}
#nav a:focus ~ ul li ul li{
margin-top:-23px;
}
#nav a:focus ~ ul li {
    margin-top:0;

    -moz-transition:  0.4s linear;
    -ms-transition: 0.4s linear;
    -o-transition: 0.4s linears;
    -webkit-transition: 0.4s linears;
    transition: 0.4s linear;
}
#nav ul a:focus ~ ul li {
    margin-top:0;

    -moz-transition:  0.4s linear;
    -ms-transition: 0.4s linear;
    -o-transition: 0.4s linears;
    -webkit-transition: 0.4s linears;
    transition: 0.4s linear;
}
#nav a:focus + img, #nav a:active + img {
    display:block;
}
#nav a.sub:active {
    background:#bcbdc1;
    outline:0;
}
#nav a:active ~ ul li, #nav ul a:active ~ ul li {
    margin-top:0;
}

#nav ul:hover li {
    margin-top:0;
}

---

你可以在这里看到fiddle

你的CSS代码在哪里！请注意在发布之前美化HTML和CSS，当没有完成时非常难阅读。此外，您的HTML无效，因为最后一个

和
未关闭。这太多代码了，无法查看。准备一小部分代码来重现问题。这就是你应该去调试的方式。它对我来说很有用（但它是一个非常难看的设计），你注意到竞争对手的菜单了吗。先生，当我们本周点击顶部列表时，下拉列表会显示，但此菜单的顶部列表会隐藏。我们能同时看到这两个吗？我会尽我最大的努力，但现在我有点忙，如果完成了，我会编辑答案，但可能会在22小时后，因为我正在旅行。你想使用javascriptHi吗？我已经创建了新的小提琴。我使用了jquery。我试过了，但没用…我不知道问题出在哪里。
#nav {
    border-radius: 3px;
    -moz-border-radius: 3px;
    -webkit-border-radius: 3px;
}

#nav, #nav ul {
    list-style: none;
    padding: 0;
    width: 199px;
}

#nav ul {
    position: relative;
    z-index: -1;
}

#nav li {
    position: relative;
    z-index: 100;
}

#nav ul li {
    margin-top: -23px;
    -moz-transition: 0.4s linear 0.4s;
    -ms-transition: 0.4s linear 0.4s;
    -o-transition: 0.4s linear 0.4s;
    -webkit-transition: 0.4s linear 0.4s;
    transition: 0.4s linear 0.4s;
}

#nav li a {
    background-color: #d4d5d8;
    color: #000;
    display: block;
    font-size: 12px;
    font-weight: bold;
    line-height: 28px;
    outline: 0;
    padding-left: 15px;
    text-decoration: none;
}

#nav li a.sub {
    background: #d4d5d8 url("../images/down.gif") no-repeat;
}

#nav li a + img {
    cursor: pointer;
    display: none;
    height: 28px;
    left: 0;
    position: absolute;
    top: 0;
    width: 200px;
}

#nav li a img {
    border-width: 0px;
    height: 24px;
    line-height: 28px;
    margin-right: 8px;
    vertical-align: middle;
    width: 24px;
}

#nav li a:hover {
    background-color: #bcbdc1;
}

#nav ul li a {
    background-color: #eee;
    border-bottom: 1px solid #ccc;
    color: #000;
    font-size: 11px;
    line-height: 22px;
}

#nav ul li a:hover {
    background-color: #ddd;
    color: #444;
}

#nav ul li a img {
    background: url("images/bulb.png") no-repeat;
    border-width: 0px;
    height: 16px;
    line-height: 22px;
    margin-right: 5px;
    vertical-align: middle;
    width: 16px;
}

#nav ul li:nth-child(odd) a img {
    background: url("images/bulb2.png") no-repeat;
}

#nav a.sub:focus {
    background: #bcbdc1;
    outline: 0;
}

#nav a:focus ~ ul li {
    margin-top: 0;
    -moz-transition: 0.4s linear;
    -ms-transition: 0.4s linear;
    -o-transition: 0.4s linears;
    -webkit-transition: 0.4s linears;
    transition: 0.4s linear;
}

#nav a:focus + img, #nav a:active + img {
    display: block;
}

#nav a.sub:active {
    background: #bcbdc1;
    outline: 0;
}

#nav a:active ~ ul li {
    margin-top: 0;
}

#nav ul:hover li {
    margin-top: 0;
}

#nav {

     border-radius:3px;
    -moz-border-radius:3px;
    -webkit-border-radius:3px;
}
#nav, #nav ul, #nav ul ul {
    list-style:none;
    padding:0;
    width:199px;
}
#nav ul, #nav ul ul {
    position:relative;
    z-index:-1;
}
#nav li {
    position:relative;
    z-index:100;
}
#nav ul li, #nav ul ul li {
    margin-top:-23px;

    -moz-transition:  0.4s linear 0.4s;
    -ms-transition: 0.4s linear 0.4s;
    -o-transition: 0.4s linear 0.4s;
    -webkit-transition: 0.4s linear 0.4s;
    transition: 0.4s linear 0.4s;
}
#nav li a {
    background-color:#d4d5d8;
    color:#000;
    display:block;
    font-size:12px;
    font-weight:bold;
    line-height:28px;
    outline:0;
    padding-left:15px;
    text-decoration:none;
}
#nav li a.sub {
    background:#d4d5d8 url("../images/down.gif") no-repeat;
}

#nav li a + img {
    cursor:pointer;
    display:none;
    height:28px;
    left:0;
    position:absolute;
    top:0;
    width:200px;
}
#nav li a img {
    border-width:0px;
    height:24px;
    line-height:28px;
    margin-right:8px;
    vertical-align:middle;
    width:24px;
}
#nav li a:hover {
    background-color:#bcbdc1;
}
#nav ul li a, #nav ul ul li a {
    background-color:#eee;
    border-bottom:1px solid #ccc;
    color:#000;
    font-size:11px;
    line-height:22px;
}
#nav ul li a:hover {
    background-color:#ddd;
    color:#444;
}
#nav ul li a img, #nav ul li ul a img {
    background: url("images/bulb.png") no-repeat;
    border-width:0px;
    height:16px;
    line-height:22px;
    margin-right:5px;
    vertical-align:middle;
    width:16px;
}
#nav ul li:nth-child(odd) a img, #nav ul ul li:nth-child(odd) a img {
    background:url("images/bulb2.png") no-repeat;
}
#nav a.sub:focus {
    background:#bcbdc1;
    outline:0;
}
#nav a:focus ~ ul li ul li{
margin-top:-23px;
}
#nav a:focus ~ ul li {
    margin-top:0;

    -moz-transition:  0.4s linear;
    -ms-transition: 0.4s linear;
    -o-transition: 0.4s linears;
    -webkit-transition: 0.4s linears;
    transition: 0.4s linear;
}
#nav ul a:focus ~ ul li {
    margin-top:0;

    -moz-transition:  0.4s linear;
    -ms-transition: 0.4s linear;
    -o-transition: 0.4s linears;
    -webkit-transition: 0.4s linears;
    transition: 0.4s linear;
}
#nav a:focus + img, #nav a:active + img {
    display:block;
}
#nav a.sub:active {
    background:#bcbdc1;
    outline:0;
}
#nav a:active ~ ul li, #nav ul a:active ~ ul li {
    margin-top:0;
}

#nav ul:hover li {
    margin-top:0;
}