Question

当我将鼠标悬停在它上面时，我试图让子菜单显示出来。目前，当我将鼠标悬停在Locations时，它会消失。

这是我的代码：

$('.main a.primary').hover(function(e){
	e.preventDefault();
	$(this).next().toggle();
}).hover();

.sub-menu {display:none;background:#ccc}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<ul class="sf-menu">
    <li class="main">
      <a href="" class="primary">Locations</a>

      <ul class="sub-menu">
        <li><a href="/location/athina/" title=
        "View all posts in Athina">Athina</a></li>

        <li><a href="/location/beirut/" title=
        "View all posts in Beirut">Beirut</a></li>

      </ul>
    </li>
  </ul>

Answer 1

这是一个没有JS的解决方案。只要容器悬停，只需显示子菜单。

http://jsfiddle.net/269yqavo/1/

.sub-menu {
    display:none;
    background:#ccc
}

.main:hover .sub-menu {
    display: block;
}

Answer 2

为什么不这样做？应该以不同的方式使用悬停功能。该事件应该绑定在父母身上。

$('.main a.primary').parent().hover(function(e){
	$(this).find("a").next().show();
}, function () {
	$(this).find("a").next().hide();
});

.sub-menu {display: none; background: #ccc}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<ul class="sf-menu">
  <li class="main">
    <a href="" class="primary">Locations</a>
    <ul class="sub-menu">
      <li><a href="/location/athina/" title=
             "View all posts in Athina">Athina</a></li>
      <li><a href="/location/beirut/" title=
             "View all posts in Beirut">Beirut</a></li>
    </ul>
  </li>
</ul>

而不是使用JS，你可以单独使用CSS：

.sub-menu {
  display: none;
  background: #ccc
}
.main:hover .sub-menu {
  display: block;
}

<ul class="sf-menu">
  <li class="main">
    <a href="" class="primary">Locations</a>
    <ul class="sub-menu">
      <li><a href="/location/athina/" title=
             "View all posts in Athina">Athina</a></li>
      <li><a href="/location/beirut/" title=
             "View all posts in Beirut">Beirut</a></li>
    </ul>
  </li>
</ul>

Answer 3

为什么你用简单的CSS来做？

HTML

<ul class="sf-menu">
    <li class="main">
      <a href="" class="primary">Locations</a>

      <ul class="sub-menu">
        <li><a href="/location/athina/" title=
        "View all posts in Athina">Athina</a></li>

        <li><a href="/location/beirut/" title=
        "View all posts in Beirut">Beirut</a></li>

      </ul>
    </li>
  </ul>

CSS

.sub-menu {display:none;background:#ccc}

.main:hover .sub-menu{
    display:block
}

当你悬停在主类子菜单上时，这里的简单逻辑将显示

<强> JSFIDDLE 1

OR

$('.sf-menu').children().hover(function(e){
    $(this).find("a").next().show();
}, function () {
    $(this).find("a").next().hide();
});

<强> JSFIDDLE 2

悬停时保持子菜单

3 个答案: