无法选择悬停中的子元素答案

【问题标题】：Child elements in hover cannot be selected无法选择悬停中的子元素
【发布时间】：2017-11-21 14:08:47
【问题描述】：

我正在修复我当前的顶部导航栏，这里的问题是导航栏有时有很多菜单可供选择，这取决于登录用户的权限，有些用户只能看到3 或 4 个选项，而管理员可能会看到所有内容（大约 16 个菜单选项）。

如果浏览器窗口最大化，可以完美地看到菜单，如果浏览器窗口开始变小，则菜单会根据窗口的大小堆叠。有些菜单有子菜单，而这些子菜单有时甚至有更多的子菜单，所以如果有 2、3 或 4 级菜单，菜单就会离开视口，用户看不到选项是什么。

这是我当前顶部导航栏菜单的 jsfiddle： https://jsfiddle.net/38qyt0gt/

这是一个jsfiddle，它使用了我从 Codepen 获取的代码 sn-p 并替换了一些部分以匹配我实际菜单的设计，唯一的问题是这个菜单也有同样的问题视口，当您将鼠标悬停在第一级时，某些菜单的子元素存在问题，子菜单会显示，但您无法选择它们或将它们悬停。

这里有一点video 炫耀新导航栏的问题。

我已经尝试通过应用下一个选择器来修复它，但它也不起作用：

#TopMenu_dropnav > ul > li:hover > ul{
  display: block;
}

希望有人能帮忙

编辑

这是新菜单栏的 CSS

* {
  margin: 0;
  padding: 0;
  text-decoration: none;
}

.logo {
  position: relative;
  z-index: 123;
  padding: 10px;
  font: 18px verdana;
  color: #FFFFFF;
  float: left;
  width: 15%;
  display: none;
}

.logo a {
  color: #FFFFFF;
}

nav {
  position: relative;
  width: 100%;
  margin: 0 auto;
}

#TopMenu_dropnav,
#TopMenu_dropnav ul,
#TopMenu_dropnav ul li,
#TopMenu_dropnav ul li a,
#TopMenu_dropnav #head-mobile {
  border: 0;
  list-style: none;
  line-height: 1;
  display: block;
  position: relative;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

#TopMenu_dropnav:after,
#TopMenu_dropnav > ul:after {
  content: ".";
  display: block;
  clear: both;
  visibility: hidden;
  line-height: 0;
  height: 0;
}

#TopMenu_dropnav #head-mobile {
  display: none;
}

#TopMenu_dropnav {
  font-family: sans-serif;
  background: #1976D2;
}

#TopMenu_dropnav > ul > li {
  float: left;
}

#TopMenu_dropnav > ul > li > a {
  padding: 17px;
  font-size: 12px;
  letter-spacing: 1px;
  text-decoration: none;
  color: #ddd;
  font-weight: 700;
}

#TopMenu_dropnav > ul > li:hover > a,
#TopMenu_dropnav ul li.active a {
  color: #fff;
}

#TopMenu_dropnav > ul > li:hover,
#TopMenu_dropnav ul li.active:hover,
#TopMenu_dropnav ul li.active,
#TopMenu_dropnav ul li.has-sub.active:hover{
  background: #2196F3!important; 
  -webkit-transition: background .3s ease;
  -ms-transition: background .3s ease;
  transition: background .3s ease;
}

#TopMenu_dropnav > ul > li.has-sub > a {
  padding-right: 30px;
}

#TopMenu_dropnav > ul > li.has-sub > a:after {
  position: absolute;
  top: 22px;
  right: 11px;
  width: 8px;
  height: 2px;
  display: block;
  background: #ddd;
  content: '';
}

#TopMenu_dropnav > ul > li.has-sub > a:before {
  position: absolute;
  top: 19px;
  right: 14px;
  display: block;
  width: 2px;
  height: 8px;
  background: #ddd;
  content: '';
  -webkit-transition: all .25s ease;
  -ms-transition: all .25s ease;
  transition: all .25s ease;
}

#TopMenu_dropnav > ul > li.has-sub:hover > a:before {
  top: 23px;
  height: 0;
}

#TopMenu_dropnav ul ul {
  position: absolute;
  left: -9999px;
}

#TopMenu_dropnav ul ul li {
  height: 0;
  -webkit-transition: all .25s ease;
  -ms-transition: all .25s ease;
  background: #333;
  transition: all .25s ease;
}

#TopMenu_dropnav li:hover > ul {
  left: auto;
}

#TopMenu_dropnav li:hover > ul > li {
  height: 35px;
}

#TopMenu_dropnav ul ul ul {
  margin-left: 100%;
  top: 0;
}

#TopMenu_dropnav ul ul li a {
  border-bottom: 1px solid rgba(150, 150, 150, 0.15);
  padding: 11px 15px;
  width: 170px;
  font-size: 12px;
  text-decoration: none;
  color: #ddd;
  font-weight: 400;
}

#TopMenu_dropnav ul ul li:last-child > a,
#TopMenu_dropnav ul ul li.last-item > a {
  border-bottom: 0;
}

#TopMenu_dropnav ul ul li:hover > a,
#TopMenu_dropnav ul ul li a:hover {
  color: #fff;
  background-color: #2196F3;
}

#TopMenu_dropnav ul ul li.has-sub > a:after {
  position: absolute;
  top: 16px;
  right: 11px;
  width: 8px;
  height: 2px;
  display: block;
  background: #ddd;
  content: ''
}

#TopMenu_dropnav ul ul li.has-sub > a:before {
  position: absolute;
  top: 13px;
  right: 14px;
  display: block;
  width: 2px;
  height: 8px;
  background: #ddd;
  content: '';
  -webkit-transition: all .25s ease;
  -ms-transition: all .25s ease;
  transition: all .25s ease;
}

#TopMenu_dropnav ul ul > li.has-sub:hover > a:before {
  top: 17px;
  height: 0;
}

#TopMenu_dropnav ul ul li.has-sub:hover,
#TopMenu_dropnav ul li.has-sub ul li.has-sub ul li:hover {
  background: #363636;
}

#TopMenu_dropnav ul ul ul li.active a {
  border-left: 1px solid #333
}

#TopMenu_dropnav > ul > li.has-sub > ul > li.active > a,
#TopMenu_dropnav > ul ul > li.has-sub > ul > li.active> a {
  border-top: 1px solid #333;
}

@media screen and (max-width:1000px) {
  nav {
    width: 100%;
  }
  .logo {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 46px;
    text-align: center;
    padding: 10px 0 0 0;
    float: none;
    display: inline;
  }
  #TopMenu_dropnav ul {
    width: 100%;
  }
  #TopMenu_dropnav ul li {
    width: 100%;
    border-top: 1px solid #444;
  }
  #TopMenu_dropnav ul li:hover {
    background: #363636;
  }
  #TopMenu_dropnav ul ul li,
  #TopMenu_dropnav li:hover > ul > li {
    height: auto;
  }
  #TopMenu_dropnav ul li a,
  #TopMenu_dropnav ul ul li a {
    width: 100%;
    border-bottom: 0;
  }
  #TopMenu_dropnav > ul > li {
    float: none;
  }
  #TopMenu_dropnav ul ul li a {
    padding-left: 25px;
  }
  #TopMenu_dropnav ul ul li {
    background: #333!important;
  }
  #TopMenu_dropnav ul ul li:hover {
    background: #363636!important;
  }
  #TopMenu_dropnav ul ul ul li a {
    padding-left: 35px;
  }
  #TopMenu_dropnav ul ul li a {
    color: #ddd;
    background: none;
  }
  #TopMenu_dropnav ul ul li:hover > a,
  #TopMenu_dropnav ul ul li.active > a {
    color: #fff;
  }
  #TopMenu_dropnav ul ul,
  #TopMenu_dropnav ul ul ul {
    position: relative;
    left: 0;
    width: 100%;
    margin: 0;
    text-align: left;
  }
  #TopMenu_dropnav > ul > li.has-sub > a:after,
  #TopMenu_dropnav > ul > li.has-sub > a:before,
  #TopMenu_dropnav ul ul > li.has-sub > a:after,
  #TopMenu_dropnav ul ul > li.has-sub > a:before {
    display: none;
  }
  #TopMenu_dropnav #head-mobile {
    display: block;
    padding: 23px;
    color: #ddd;
    font-size: 12px;
    font-weight: 700;
  }
  .button {
    width: 55px;
    height: 46px;
    position: absolute;
    right: 0;
    top: 0;
    cursor: pointer;
    z-index: 12399994;
  }
  .button:after {
    position: absolute;
    top: 22px;
    right: 20px;
    display: block;
    height: 4px;
    width: 20px;
    border-top: 2px solid #dddddd;
    border-bottom: 2px solid #dddddd;
    content: '';
  }
  .button:before {
    -webkit-transition: all .3s ease;
    -ms-transition: all .3s ease;
    transition: all .3s ease;
    position: absolute;
    top: 16px;
    right: 20px;
    display: block;
    height: 2px;
    width: 20px;
    background: #ddd;
    content: '';
  }
  .button.menu-opened:after {
    -webkit-transition: all .3s ease;
    -ms-transition: all .3s ease;
    transition: all .3s ease;
    top: 23px;
    border: 0;
    height: 2px;
    width: 19px;
    background: #fff;
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -o-transform: rotate(45deg);
    transform: rotate(45deg);
  }
  .button.menu-opened:before {
    top: 23px;
    background: #fff;
    width: 19px;
    -webkit-transform: rotate(-45deg);
    -moz-transform: rotate(-45deg);
    -ms-transform: rotate(-45deg);
    -o-transform: rotate(-45deg);
    transform: rotate(-45deg);
  }
  #TopMenu_dropnav .submenu-button {
    position: absolute;
    z-index: 99;
    right: 0;
    top: 0;
    display: block;
    border-left: 1px solid #444;
    height: 46px;
    width: 46px;
    cursor: pointer;
  }
  #TopMenu_dropnav .submenu-button.submenu-opened {
    background: #262626;
  }
  #TopMenu_dropnav ul ul .submenu-button {
    height: 34px;
    width: 34px;
  }
  #TopMenu_dropnav .submenu-button:after {
    position: absolute;
    top: 22px;
    right: 19px;
    width: 8px;
    height: 2px;
    display: block;
    background: #ddd;
    content: '';
  }
  #TopMenu_dropnav ul ul .submenu-button:after {
    top: 15px;
    right: 13px;
  }
  #TopMenu_dropnav .submenu-button.submenu-opened:after {
    background: #fff;
  }
  #TopMenu_dropnav .submenu-button:before {
    position: absolute;
    top: 19px;
    right: 22px;
    display: block;
    width: 2px;
    height: 8px;
    background: #ddd;
    content: '';
  }
  #TopMenu_dropnav ul ul .submenu-button:before {
    top: 12px;
    right: 16px;
  }
  #TopMenu_dropnav .submenu-button.submenu-opened:before {
    display: none;
  }
  #TopMenu_dropnav ul ul ul li.active a {
    border-left: none;
  }
  #TopMenu_dropnav > ul > li.has-sub > ul > li.active > a,
  #TopMenu_dropnav > ul ul > li.has-sub > ul > li.active > a {
    border-top: none;
  }
}

【问题讨论】：

请将所有相关代码放入问题中。如果 jsFiddle 出现故障，您的问题将无法回答。
@RoryMcCrossan 我把所有的东西都放在了jsfiddle中，因为代码有点太大，而且帖子只允许30,000个字符
显示您的完整代码
为什么不使用 table tr td ？它可以用表而不是 ul 或 ol 元素来完成。如果孩子超过表格的宽度，表格可以设置为水平溢出
@JoseAndresValenciaAcosta 那么请根据您当前的情况显示相关代码。你不需要包括所有的小提琴。

标签： jquery html css responsive-design

【解决方案1】：

将onclick="" 添加到您希望iOS 识别为带有悬停元素的任何内容。试试这个：

<div onclick="">Click Me!</div>

或者可以使用 CSS 媒体查询来根据视口改变大小，

 @media only screen and (max-width: 768px) { 
  .your_class_here {
    /* css style goes here; */
  }
}

【讨论】：