效果图：
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>网站建设中</title>
<style>
/* 基础样式 */
body, html {
margin: 0;
padding: 0;
height: 100%;
font-family: Arial, sans-serif;
}
.container {
position: relative;
height: 100vh;
background-color: #282c36;
color: #fff;
text-align: center;
}
/* 垂直居中内容 */
.content {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
h1 {
font-size: 3em;
margin-bottom: 10px;
}
p {
font-size: 1.5em;
}
/* 加点动画 */
.content span {
animation: blink 1.5s linear infinite;
}
@keyframes blink {
0%, 100% { opacity: 1; }
50% { opacity: 0; }
}
</style>
</head>
<body>
<div class="container">
<div class="content">
<h1>网站建设中</h1>
<p>谢谢你的访问！网站还在建设中，<span><font color='red'><b>请耐心等待</b></font></span>。</p>
</div>
</div>
</body>
</html>