了解如何使用 CSS 和 JavaScript 为智能手机/平板电脑创建顶部导航菜单。
<!-- Load an icon library to show a hamburger menu (bars) on small screens -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<!-- Top Navigation Menu -->
<div class="topnav">
<a href="#home" class="active">Logo</a>
<!-- Navigation links (hidden by default) -->
<div id="myLinks">
<a href="#news">News</a>
<a href="#contact">Contact</a>
<a href="#about">About</a>
</div>
<!-- "Hamburger menu" / "Bar icon" to toggle the navigation links -->
<a href="javascript:void(0);" class="icon" onclick="myFunction()">
<i class="fa fa-bars"></i>
</a>
</div>
/* Style the navigation menu */
.topnav {
overflow: hidden;
background-color: #333;
position: relative;
}
/* Hide the links inside the navigation menu (except for logo/home) */
.topnav #myLinks {
display: none;
}
/* Style navigation menu links */
.topnav a {
color: white;
padding: 14px 16px;
text-decoration: none;
font-size: 17px;
display: block;
}
/* Style the hamburger menu */
.topnav a.icon {
background: black;
display: block;
position: absolute;
right: 0;
top: 0;
}
/* Add a grey background color on mouse-over */
.topnav a:hover {
background-color: #ddd;
color: black;
}
/* Style the active link (or home/logo) */
.active {
background-color: #04AA6D;
color: white;
}
/* Toggle between showing and hiding the navigation menu links when the user clicks on the hamburger menu / bar icon */
function myFunction() {
var x = document.getElementById("myLinks");
if (x.style.display === "block") {
x.style.display = "none";
} else {
x.style.display = "block";
}
}
亲自试一试 »
提示:要创建适用于所有设备的响应式导航栏,请阅读我们的如何操作 - 响应式顶部导航教程。
提示:去我们的CSS 导航栏教程了解有关导航栏的更多信息。
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