我的浏览器似乎都没有显示我的 CSS 代码的文本阴影属性 我正在遵循一个 udemy 教程，我按照它告诉我的做了，但它似乎不起作用，你能告诉我为什么吗？ 这是引导程序 3.4.1，我的常规浏览器是 Chrome 版本 80.0，但它在火狐浏览器上不起作用， Safari、Quora、Internet Explorer 或 Microsoft Edge
这是代码：
body {
background:url("https://images.unsplash.com/photo-1415369629372-26f2fe60c467?ixlib=rb-1.2.1&auto=format&fit=crop&w=634&q=80");
background-size:cover;
background-position: center;
font-family: Lato;
color: white;
}
html {
height: 100%
}
#content {
text-align: center;
padding-top:25%
text-shadow: 0 4px 3px rgba(0,0,0,0.4),
0 8px 13px rgba(0,0,0,0.1),
0 18px 23px rgba(0,0,0,0.1);
}
h1 {
font-weight: 700;
font-size: 5em;
}
hr {
width: 400px;
border-top: 1px solid #f8f8f8;
border-bottom: 2px solid rgba(0, 0, 0, 0.3);
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>purrfect match</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css" integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.0-1/css/all.css">
<link rel="stylesheet" href="date.css">
<link href="https://fonts.googleapis.com/css?family=Lato:400,700&display=swap" rel="stylesheet">
<script src="https://code.jquery.com/jquery-3.4.1.min.js" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js" integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd" crossorigin="anonymous"></script>
</head>
<body>
<nav class="navbar navbar-default">
<div class="container">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Purrfect Match</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a></li>
<li><a href="#">About<span class="sr-only">(current)</span></a></li>
<li><a href="#">Content</a></li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="#"><i class="fas fa-user-plus"></i>Sign Up</a></li>
<li><a href="#"><i class="fas fa-user"></i>Login</a></li>
</ul>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
<div class="container">
<div class="row">
<div class="col-lg-12">
<div id="content">
<h1>Purrfect match</h1>
<h3>The Only Feline Dating-Human App</h3>
<hr>
<button class="btn btn-default btn-lg"><i class="fas fa-paw"></i> Get Started!</button>
</div>
</div>
</div>
</div>
</body>
</html>代码中缺少分号：
#content {
text-align: center;
padding-top:25%; **// missing semicolon is the issue in the code.**
text-shadow: 0 4px 3px rgba(0,0,0,0.4),
0 8px 13px rgba(0,0,0,0.1),
0 18px 23px rgba(0,0,0,0.1);
}