html - 无法获得水平 3 级 css 菜单以正确显示第 3 级。我已经包含了 html 和 css

Question

我在为水平 CSS 菜单创建第三级弹出时遇到问题。我已经尝试对 css 进行许多不同的更改但无济于事。我已经包含了菜单 html 和 css。我需要对 css 进行哪些更改才能使其正常工作？

当“添加分数”悬停在 2 个菜单上时，应显示在右侧

#menu {
    background-color: #66A366;
    padding: 6px 0 6px 20px;
}
#menu ul li a {
    color: #fff;
    text-decoration: none;
    font-family:"Arial Narrow", "Myriad Pro";
}
#menu li {
    color: #fff;
    text-decoration: none;
    font-family:"Arial Narrow", "Myriad Pro";
}
ul {
    text-align: left;
    display: inline;
    margin: 0;
    padding: 15px 4px 17px 0;
    list-style: none;
    -webkit-box-shadow: 0 0 5px rgba(0, 0, 0, 0.15);
    -moz-box-shadow: 0 0 5px rgba(0, 0, 0, 0.15);
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.15);
}
ul li {
    font: bold 14px/18px sans-serif;
    display: inline-block;
    margin-right: -4px;
    position: relative;
    padding: 15px 20px;
    background: #66A366;
    cursor: pointer;
    -webkit-transition: all 0.2s;
    -moz-transition: all 0.2s;
    -ms-transition: all 0.2s;
    -o-transition: all 0.2s;
    transition: all 0.2s;
}
ul li:hover {
    background: #555;
    color: #fff;
}
ul li ul {
    padding: 0;
    position: absolute;
    top: 48px;
    left: 0;
    width: 150px;
    -webkit-box-shadow: none;
    -moz-box-shadow: none;
    box-shadow: none;
    display: none;
    opacity: 0;
    z-index:1000;
    visibility: hidden;
    -webkit-transiton: opacity 0.2s;
    -moz-transition: opacity 0.2s;
    -ms-transition: opacity 0.2s;
    -o-transition: opacity 0.2s;
    -transition: opacity 0.2s;
}
ul li ul li {
    background: #555;
    display: block;
    color: #fff;
    text-shadow: 0 -1px 0 #000;
}
ul li ul li:hover {
    background: #666;
}
ul li:hover ul {
    display: block;
    opacity: 1;
    visibility: visible;
}


ul li ul li:hover li{
    display: block;
    opacity: 1;
    visibility: visible;
}

ul li ul li ul li{
    padding: 15px 20px;
    font: bold 14px/18px sans-serif;
    display: none;    
    position: relative;
    top: -48px;
    left: 154px;
    width: 120px;
    -webkit-box-shadow: none;
    -moz-box-shadow: none;
    box-shadow: none;
    opacity: 0;
    z-index:1000;
    visibility: hidden;
    -webkit-transiton: opacity 0.2s;
    -moz-transition: opacity 0.2s;
    -ms-transition: opacity 0.2s;
    -o-transition: opacity 0.2s;
    -transition: opacity 0.2s;
}

<div id="menu">
<ul>
    <li>SCORES
        <ul>
            <li>ADD SCORES

                <ul>
                    <li>Level 3-A-1</li>
                    <li>Level 3-A-2</li>                                                         
                </ul>


            </li>
            <li>EDIT SCORES</li>
        </ul>
    </li>
    <li>PLAYERS
        <ul>
            <li>ADD PLAYER</li>
            <li>EDIT PLAYERS</li>
        </ul>
    </li>
    <li>COURSES
        <ul>
            <li>ADD COURSE</li>
            <li>EDIT COURSES</li>
        </ul>
    </li>           
    <li>ADMIN</li>
</ul>
</div>

Answer 1

Demo FIDDLE

我不确定您希望菜单的外观如何，但我注意到您忘记将选项卡包裹在 <ul></ul> 中。标签。

如果您这样做，菜单的外观和行为将与大多数用户所期望的一样。

<div id="menu">
    <ul> <-- here
       <li>SCORES
        // some code     
        <li>ADMIN</li>
    </ul> <-- and here
</div>