我正在自学网络开发,我认为这比开始我自己的个人网页更好.
我遇到了使用Bootstrap 4和导航栏的问题.
我可以获取列表,并在窗口收缩时显示图标,但我无法扩展或切换崩溃.我甚至复制并粘贴了一些来自bootstrap文档的代码,看看我做错了什么,即使这样也行不通.
我已经试过firefox和chrome,两者都有,我仍然无法用图标按钮切换崩溃.
这是代码:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="description" content="Heath's Personal Website">
<meta name="keywords" content="heath, blandford, heath blandford">
<meta name="author" content="heath blandford">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!--import bootstrap -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<!-- import google fonts lobster and open sans -->
<link href="https://fonts.googleapis.com/css?family=Lobster|Open+Sans" rel="stylesheet">
</head>
<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
<a class="navbar-brand" href="#">navbar</a>
<!-- Navbar brand yo -->
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarTop" aria-controls="navbar" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse …