如何操作 - 子导航

了解如何使用 CSS 创建子导航菜单。

子导航

创建子导航

步骤1）添加HTML：

示例

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">


<div class="navbar">
<a href="#home">Home</a>
<div class="subnav">
    <button class="subnavbtn">About <i class="fa fa-caret-down"></i></button>
    <div class="subnav-content">
      <a href="#company">Company</a>
      <a href="#team">Team</a>
      <a href="#careers">Careers</a>
    </div>
</div>
<div class="subnav">
    <button class="subnavbtn">Services <i class="fa fa-caret-down"></i></button>
    <div class="subnav-content">
      <a href="#bring">Bring</a>
      <a href="#deliver">Deliver</a>
      <a href="#package">Package</a>
      <a href="#express">Express</a>
    </div>
</div>
<div class="subnav">
    <button class="subnavbtn">Partners <i class="fa fa-caret-down"></i></button>
    <div class="subnav-content">
      <a href="#link1">Link 1</a>
      <a href="#link2">Link 2</a>
      <a href="#link3">Link 3</a>
      <a href="#link4">Link 4</a>
    </div>
</div>
<a href="#contact">Contact</a>
</div>

示例解释

使用任何元素打开子导航/下拉菜单，例如 <button>、<a> 或 <p> 元素。

使用容器元素（如 <div>）创建子导航菜单并在其中添加子导航链接。

将 <div> 元素包裹在按钮和 <div> 周围，以使用 CSS 正确定位子导航菜单。

步骤2）添加CSS：

示例

/* The navigation menu */
.navbar {
overflow: hidden;
background-color: #333;
}

/* Navigation links */
.navbar a {
float: left;
font-size: 16px;
color: white;
text-align: center;
padding: 14px 16px;
text-decoration: none;
}

/* The subnavigation menu */
.subnav {
float: left;
overflow: hidden;
}

/* Subnav button */
.subnav .subnavbtn {
font-size: 16px;
border: none;
outline: none;
color: white;
padding: 14px 16px;
background-color: inherit;
font-family: inherit;
margin: 0;
}

/* Add a red background color to navigation links on hover */
.navbar a:hover, .subnav:hover .subnavbtn {
background-color: red;
}

/* Style the subnav content - positioned absolute */
.subnav-content {
display: none;
position: absolute;
left: 0;
background-color: red;
width: 100%;
z-index: 1;
}

/* Style the subnav links */
.subnav-content a {
float: left;
color: white;
text-decoration: none;
}

/* Add a grey background color on hover */
.subnav-content a:hover {
background-color: #eee;
color: black;
}

/* When you move the mouse over the subnav container, open the subnav content */
.subnav:hover .subnav-content {
display: block;
}

亲自试一试 »