Question

我已经编写了下面的代码来帮助我理解CSS堆叠顺序但是我被卡住了。在我将鼠标悬停在链接“Three”（id = link_three）上面的页面中，我希望显示子菜单。子菜单出现但菜单栏变形，因为子菜单没有堆叠在菜单栏的其余部分上方。这里的堆叠上下文和堆叠顺序是什么？什么是使子菜单出现在上一级的正确方法？

<html>
<head>
<style>
<!--
* {
    padding: 0;
    border: 0;
    margin: 0;
}

.menubar_ul {
    list-style: none;
}

.menubar_ul_li,.menubar_ul_li_menu {
    float: left;
    padding: 0 10px 0 10px;
}

.menu_ul {
    list-style: none;
    display: none;
}

.menu_ul_li {

}

#link_three:hover>#menu_three {
    display: block;
}
-->
</style>
</head>
<body>
    <ul id="top_menubar" class="menubar_ul">
        <li class="menubar_ul_li" id="link_one">One</li>
        <li class="menubar_ul_li" id="link_two">Two</li>
        <li class="menubar_ul_li_menu" id="link_three"><a href="#">Three</a>
            <ul class="menu_ul" id="menu_three">
                <li class="menu_ul_li" id="menuitem_one">One</li>
                <li class="menu_ul_li" id="menuitem_two">Two</li>
                <li class="menu_ul_li" id="menuitem_three">
                <!-- This is intentional: -->
                Threeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee</li>
                <li class="menu_ul_li" id="menuitem_four">Four</li>
                <li class="menu_ul_li" id="menuitem_five">Five</li>
                <li class="menu_ul_li" id="menuitem_six">Six</li>
            </ul></li>
        <li class="menubar_ul_li" id="link_four">Four</li>
        <li class="menubar_ul_li" id="link_five">Five</li>
        <li class="menubar_ul_li" id="link_six">Six</li>
    </ul>
</body>
</html>

Answer 1

<!-- Just add "position:absolute;" to your css, this is going to be then -->

#link_three:hover>#menu_three {
    display: block;
    position:absolute;
}

CSS堆叠顺序 - 如何做到这一点？

1 个答案: