取消悬停后,使CSS悬停状态保持不变

Question

如何使悬停状态保持至少1秒？目前很难选择子菜单项,因为悬停状态过早消失.

这是jsFiddle.

我的HTML:

<div class="container">
    <div class="row">
        <div class="col-md-12">
            <div>
                <span>Logo+Text</span>
            </div>
            <div class="btn-group has_dropdown" style="margin-left: 200px">
                <a href="#" class="btn btn-default dropdown-toggle" data-toggle="dropdown">Lists</a>
                <ul class="dropdown-menu" role="menu">
                    <li>
                        <a href="#">Sub List 1</a>
                    </li>
                    <li>
                        <a href="#">Sub List 2</a>
                    </li>
                    <li>
                        <a href="#">Sub List 3</a>
                    </li>
                    <li>
                        <a href="#">Sub List 4</a>
                    </li>
                    <li>
                        <a href="#">Sub List 5</a>
                    </li>
                </ul>
            </div>
        </div>
    </div>
</div>

和CSS:

#headerDropdown .dropdown:hover .dropdown-menu,
.btn-group:hover .dropdown-menu {
    display: inline-flex !important;
}

Answer 1

您可以使用CSS transition使用delay.但你不能将它与display财产一起使用,所以visibility改为使用它.

.btn-group .dropdown-menu {
  display: inline-flex;
  transition: all 0s ease 1s; /*delay 1s*/
  visibility: hidden;
}
.btn-group:hover .dropdown-menu {
  transition-delay: 0s;
  visibility: visible;
}

更新了jsFiddle