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移动端网页设计vm+rem，和px实现方式对比

news 2025/9/3 9:15:57

vscode安装cssrem插件

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>移动端复杂布局示例（px）</title>
<style>
html {font-size: calc(100vw / 375 * 100); /* 1rem = 设计稿100px */
}html, body {margin: 0;padding: 0;overflow-x: hidden; /* 防止横向滚动条 */
}
/* Banner */
.banner {width: 375px;         /* 固定宽度，等于设计稿宽 */height: 150px;background-color: #4CAF50;color: white;display: flex;justify-content: center;align-items: center;font-size: 24px;margin: 0 auto;
}/* 轮播图 */
.carousel img {width: 375px;height: 150px;display: block;margin: 0 auto;
}/* 功能卡片 */
.features {display: flex;justify-content: space-around;width: 375px;padding: 20px 0;margin: 0 auto;
}
.feature {width: 80px;height: 80px;background-color: #FFC107;border-radius: 10px;display: flex;justify-content: center;align-items: center;font-size: 18px;
}/* 文章列表 */
.articles {width: 375px;padding: 15px;margin: 0 auto;
}
.article {background: #f0f0f0;padding: 15px;margin-bottom: 10px;border-radius: 15px;
}
.article h3 {font-size: 20px;margin: 0 0 5px 0;
}
.article p {font-size: 16px;margin: 0;
}/* 按钮 */
.btn {display: block;width: 300px;height: 50px;margin: 20px auto;font-size: 18px;background-color: #2196F3;color: white;border: none;border-radius: 5px;
}
</style>
</head>
<body><header class="banner">头部 Banner</header><section class="carousel"><img src="https://placehold.co/375x150.png?text=Placeholder+Image" alt="轮播图">
</section><section class="features"><div class="feature">功能1</div><div class="feature">功能2</div><div class="feature">功能3</div><div class="feature">功能4</div>
</section><section class="articles"><div class="article"><h3>文章标题1</h3><p>文章摘要内容，固定 px 单位显示</p></div><div class="article"><h3>文章标题2</h3><p>文章摘要内容，固定 px 单位显示</p></div>
</section><button class="btn">立即体验</button></body>
</html>

适配

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>移动端复杂布局示例（px）</title>
<style>
html {font-size: calc(100vw / 375 * 100); /* 100px = 设计稿1rem */
}html, body {margin: 0;padding: 0;overflow-x: hidden; /* 防止横向滚动条 */
}
/* Banner */
.banner {width: 3.75rem;         /* 固定宽度，等于设计稿宽 */height: 1.5rem;background-color: #4CAF50;color: white;display: flex;justify-content: center;align-items: center;font-size: .24rem;margin: 0 auto;
}/* 轮播图 */
.carousel img {width: 3.75rem;height: 1.5rem;display: block;margin: 0 auto;
}/* 功能卡片 */
.features {display: flex;justify-content: space-around;width: 3.75rem;padding: .2rem 0;margin: 0 auto;
}
.feature {width: .8rem;height: .8rem;background-color: #FFC107;border-radius: .1rem;display: flex;justify-content: center;align-items: center;font-size: .18rem;
}/* 文章列表 */
.articles {width: 3.75rem;padding: .15rem;margin: 0 auto;
}
.article {background: #f0f0f0;padding: .15rem;margin-bottom: .1rem;border-radius: .15rem;
}
.article h3 {font-size: .2rem;margin: 0 0 .05rem 0;
}
.article p {font-size: .16rem;margin: 0;
}/* 按钮 */
.btn {display: block;width: 3rem;height: .5rem;margin: .2rem auto;font-size: .18rem;background-color: #2196F3;color: white;border: none;border-radius: .05rem;
}
</style>
</head>
<body><header class="banner">头部 Banner</header><section class="carousel"><img src="https://placehold.co/375x150.png?text=Placeholder+Image" alt="轮播图">
</section><section class="features"><div class="feature">功能1</div><div class="feature">功能2</div><div class="feature">功能3</div><div class="feature">功能4</div>
</section><section class="articles"><div class="article"><h3>文章标题1</h3><p>文章摘要内容，固定 px 单位显示</p></div><div class="article"><h3>文章标题2</h3><p>文章摘要内容，固定 px 单位显示</p></div>
</section><button class="btn">立即体验</button></body>
</html>