我有一些难以使这个网站（phil-ga-surge.sh）移动响应。由于它只是一个登陆页面，我并不是想让它变得太复杂，所以只是希望一切都在屏幕尺寸改变时就位。我确信这很简单，但对于我的生活，我无法理解这一点。我画的是空白。这是我到目前为止：
* {
box-sizing: border-box;
margin: 0;
}
body, html {
height: 100%;
margin: 0;
}
.bgimg {
background-image: url("https://res.cloudinary.com/dod6u4bjy/image/upload/v1536798847/water_kingdom_background.jpg");
height: 100%;
background-position: center;
background-size: cover;
position: relative;
color: white;
font-family: 'Merienda', cursive;
font-size: 25px;
}
.nav {
color: blue;
text-decoration: none;
list-style-type: none;
display: flex;
justify-content: space-between;
width: 400px;
padding-top: 10px;
}
.topleft {
position: absolute;
top: 0;
left: 16px;
}
.header {
color: white;
}
.heading {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
text-align: center;
}
hr {
margin: auto;
width: 40%;
}
#h3 {
color: rgba(255, 255, 255, 0.5);
-webkit-animation: flash linear 4s infinite;
animation: flash linear 4s infinite;
}
@-webkit-keyframes flash {
0% {
opacity: 4;
}
50% {
opacity: 0.4;
}
100% {
opacity: 4;
}
}
@keyframes flash {
0% {
opacity: 4;
}
50% {
opacity: 0.4;
}
100% {
opacity: 4;
}
}
a:hover {
color: darkgrey;
}
.logo {
margin-top: 25px;
height: 100px;
}
a {
text-decoration: none;
color: darkblue;
}
footer {
text-align: center;
color: white;
position: fixed;
bottom: 0;
width: 100%;
}
@media all and (max-width: 480px) {
.nav {
display:inline-block;
}
.header {
width: 100%;
}
body, html {
width: 100%;
}
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<link href="https://fonts.googleapis.com/css?family=Architects+Daughter" rel="stylesheet">
<link rel="stylesheet" href="style.css" type="text/css"
</head>
<body>
<div class="bgimg">
<div class="topleft">
<nav class="nav">
<li> <a href="https://raijinstudiosabout.carrd.co">Raijin Studios</li></a>
<li><a href="https://thewaterkingbook.carrd.co">About the Book</li></a>
</nav>
</div>
<div class="heading">
<h1 class="header">Announcing:<br> The Water King</h1>
<hr>
<h3 id="h3"></h3>
</div>
</div>
<footer>©Raijin Studios</footer>
<script src="javascript.js"></script>
</body>
</html>问题是你有一个未封闭的link标签：
<link rel="stylesheet" href="style.css" type="text/css"
把它改成这个：
<link rel="stylesheet" href="style.css" type="text/css" />
我尽快用<link rel="stylesheet" href="style.css" type="text/css"取代<link rel="stylesheet" href="style.css" type="text/css" />