菜单取消隐藏后CSS子菜单不会显示无javascript

我只想使用CSS，不使用JavaScript。当我将鼠标悬停在顶层菜单上时，我可以显示子菜单，但只要取消顶层菜单中的子菜单，就会消失。我怎么能解决这个问题，而不使用JavaScript？我错过了什么吗？菜单取消隐藏后CSS子菜单不会显示无javascript

我试图使用.has-children:hover + .sub-menu {display: block;}来显示子菜单，当我将鼠标悬停在顶层菜单上，但我不知道我可以编码以保持可见的子菜单。

的HTML代码是：

.header ul { 
 
    list-style: none; 
 
    padding: 20px 30px; 
 
} 
 
.header li { 
 
    float: left; 
 
    position: relative; 
 
} 
 
.header li a { 
 
    padding: 20px 30px; 
 
} 
 
.menu { 
 
    clear: none; 
 
    float: right; 
 
    max-height: none; 
 
} 
 
.menu li ul { 
 
    position: absolute; 
 
} 
 
.sub-menu { 
 
    display: none; 
 
} 
 
.open-menu-link { 
 
    display: none; 
 
} 
 
.has-children:hover + .sub-menu { 
 
    display: block; 
 
}

<header class="header"> 
 
    <ul class="menu"> 
 
    <li><a href="#work">Work</a></li> 
 
    <li> 
 
     <a class="has-children" href="#about">Haschildren</a> 
 
     <ul class="sub-menu"> 
 
     <li><a href="#link1">Child 1</a></li> 
 
     <li><a href="#link2">Child 2</a></li> 
 
     <li><a href="#link3">Child 3</a></li> 
 
     </ul> 
 
    </li> 
 
    <li><a href="#careers">Careers</a></li> 
 
    <li> 
 
     <a class="has-children" href="#careers">About</a> 
 
     <ul class="sub-menu"> 
 
     <li><a href="#link1">Child 3</a></li> 
 
     <li><a href="#link2">Child 4</a></li> 
 
     </ul> 
 
    </li> 
 
    <li><a href="#">end</a></li> 
 
    </ul> 
 
</header>

来源

2016-09-28 AleRef

打动你has-children类到li，然后让你选择：

.has-children:hover > .sub-menu

更新片段：

.header ul { 
 
    list-style: none; 
 
    padding: 20px 30px; 
 
} 
 
.header li { 
 
    float: left; 
 
    position: relative; 
 
} 
 
.header li a { 
 
    padding: 20px 30px; 
 
} 
 
.menu { 
 
    clear: none; 
 
    float: right; 
 
    max-height: none; 
 
} 
 
.menu li ul { 
 
    position: absolute; 
 
} 
 
.sub-menu { 
 
    display: none; 
 
} 
 
.open-menu-link { 
 
    display: none; 
 
} 
 
.has-children:hover > .sub-menu { 
 
    display: block; 
 
}

<header class="header"> 
 
    <ul class="menu"> 
 
     <li><a href="#work">Work</a></li> 
 
     <li class="has-children"> 
 
     <a href="#about">Haschildren</a> 
 
     <ul class="sub-menu"> 
 
      <li><a href="#link1">Child 1</a></li> 
 
      <li><a href="#link2">Child 2</a></li> 
 
      <li><a href="#link3">Child 3</a></li> 
 
     </ul> 
 
     </li> 
 
     <li><a href="#careers">Careers</a></li> 
 
     <li class="has-children"> 
 
     <a href="#careers">About</a> 
 
     <ul class="sub-menu"> 
 
      <li><a href="#link1">Child 3</a></li> 
 
      <li><a href="#link2">Child 4</a></li> 
 
     </ul> 
 
     </li> 
 
     <li><a href="#">end</a></li> 
 
    </ul> 
 
    </header>

来源

2016-09-28 10:45:45 Pete

类has-children添加到李和使用李的悬停事件显示子菜单。

.header ul { 
 
    list-style: none; 
 
    padding: 20px 30px; 
 
} 
 
.header li { 
 
    float: left; 
 
    position: relative; 
 
} 
 
.header li a { 
 
    padding: 20px 30px; 
 
} 
 
.menu { 
 
    clear: none; 
 
    float: right; 
 
    max-height: none; 
 
} 
 
.menu li ul { 
 
    position: absolute; 
 
} 
 
.sub-menu { 
 
    display: none; 
 
} 
 
.open-menu-link { 
 
    display: none; 
 
} 
 
.has-children:hover .sub-menu { 
 
    display: block; 
 
}

<!DOCTYPE html> 
 
<html> 
 

 
<head> 
 
    <meta charset="UTF-8"> 
 
    <meta name="viewport" content="width=device-width, initial-scale=1"> 
 
    <link rel="stylesheet" type="text/css" href="mystyle.css"> 
 
</head> 
 

 
<body> 
 
    <header class="header"> 
 
    <ul class="menu"> 
 
     <li><a href="#work">Work</a> 
 
     </li> 
 
     <li class="has-children"><a href="#about">Haschildren</a> 
 
     <ul class="sub-menu"> 
 
      <li><a href="#link1">Child 1</a> 
 
      </li> 
 
      <li><a href="#link2">Child 2</a> 
 
      </li> 
 
      <li><a href="#link3">Child 3</a> 
 
      </li> 
 
     </ul> 
 
     </li> 
 
     <li><a href="#careers">Careers</a> 
 
     </li> 
 
     <li class="has-children"><a href="#careers">About</a> 
 
     <ul class="sub-menu"> 
 
      <li><a href="#link1">Child 3</a> 
 
      </li> 
 
      <li><a href="#link2">Child 4</a> 
 
      </li> 
 
     </ul> 
 
     </li> 
 
     <li><a href="#">end</a> 
 
     </li> 
 
    </ul> 
 
    </header> 
 

 
</body> 
 

 
</html>

来源

2016-09-28 10:45:56 Pugazh

菜单取消隐藏后CSS子菜单不会显示无javascript

回答

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