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如何编辑代码，以便即使鼠标不再悬停窗口也将保持打开状态，但在选择另一个窗口/类别时会关闭？

.verticalaccordion>ul {
    margin: 0;
    padding: 0;
    list-style:none;
    width: 500px;
}

.verticalaccordion>ul>li {
    display:block;
    overflow: hidden;
    margin: 0;
    padding: 0;
    list-style:none;
    height:40px;
    width: 500px;

    /* Decorative CSS */
    background-color:#f0f0f0;

    /* CSS3 Transition Effect */
    transition: height 0.3s ease-in-out;
    -moz-transition: height 0.3s ease-in-out;
    -webkit-transition: height 0.3s ease-in-out;
    -o-transition: height 0.3s ease-in-out;
}

.verticalaccordion>ul>li>h3 {
    display:block;
    margin: 0;
    padding:10px;
    height:19px;

    /* Decorative CSS */
    border-top:#f0f0f0 1px solid;
    font-family: Arial, Helvetica, sans-serif;
    text-decoration:none;
    text-transform:uppercase;
    color: #000;
    background: #cccccc;

    /* CSS3 Gradient Effect */
    background: -moz-linear-gradient( top, #999999, #cccccc);
    background: -webkit-gradient(linear, left top, left bottom, from(#999999), to(#cccccc));
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#ff999999, endColorstr=#ffcccccc); /* IE 7 */
    -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr=#ff999999, endColorstr=#ffcccccc)";   /* IE 8 */
}

.verticalaccordion>ul>li>div {
    margin:0;
    overflow: auto;
    padding:10px;
    height:220px;
}

.verticalaccordion>ul>li:hover {
    height: 280px;
}

.verticalaccordion:hover>ul>li:hover>h3 {
    /* Decorative CSS */
    color:#fff;
    background: #000000;

    /* CSS3 Gradient Effect */
    background: -moz-linear-gradient( top, #454545, #000000); /* FF, Flock */
    background: -webkit-gradient(linear, left top, left bottom, from(#454545), to(#000000)); /* Safari, Chrome */
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#ff454545, endColorstr=#ff000000); /* IE 5.5 - IE 7 */
    -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr=#ff454545, endColorstr=#ff000000)";   /* IE 8 */
}

.verticalaccordion>ul>li>h3:hover {
    cursor:pointer;
}

    <div class="verticalaccordion">
<ul>
    <li>
        <h3>Heading 1</h3>
        <div>Content For Panel 1.</div>
    </li>
    <li>
        <h3>Heading 2</h3>
        <div>Content For Panel 2</div>
    </li>
    <li>
        <h3>Heading 3</h3>
        <div>Content For Panel 3.</div>
    </li>
    <li>
        <h3>Heading 4</h3>
        <div>Content For Panel 4</div>
    </li>
</ul>
</div>

以下是上述代码的来源：Cross Browser Pure CSS3 Vertical Accordion

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1 回答 1

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您无法在纯 CSS 中知道放置在当前元素（或其子元素）之后的元素会发生什么。因此，即使使用:target + li > a:hover，:focus ~ blah或者您可以编造的任何内容，当第三个链接发生问题时，您也不知道如何处理第一个链接。

对复杂的菜单使用 jQuery（或 JS 或任何框架），它更实用，与不太旧的浏览器有更好的兼容性；）

于 2012-06-05T15:22:17.187 回答