Set width: full 320 768 1024 1920 custom
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Single Column Responsive HTML Layout</title>
<meta name="description" content="A single column responsive layout with a top navigation bar.">
<style>
body {
margin: 0;
font-family: sans-serif;
background: #ddd;
min-width: 320px;
display: flex;
flex-direction: column;
align-items: center;
}
.wrap {
max-width: 800px;
width: 100%;
background: #fff;
padding: 1rem 1.5rem;
box-sizing: border-box;
}
header {
position: relative;
}
header h1 {
font-size: 2rem;
margin: 1rem 0;
}
.nav {
display: flex;
justify-content: space-between;
background-color: #555;
color: white;
padding: 1rem;
box-sizing: border-box;
}
.nav a {
color: white;
text-decoration: none;
padding: 0 10px;
}
.hamburger {
display: none;
font-size: 30px;
cursor: pointer;
}
#menu-toggle {
display: none;
}
#menu-toggle:checked ~ .nav {
display: block;
}
@media (max-width: 1023px) {
header {
display: flex;
justify-content: space-between;
border-bottom: 1px solid #ccc;
}
.nav {
display: none;
flex-direction: column;
}
.hamburger {
display: block;
padding: .75rem 1rem;
text-align: right;
}
#menu-toggle:checked ~ .nav {
display: flex;
position: absolute;
width: 100%;
top: 100%;
padding: 0;
}
#menu-toggle:checked ~ .nav a {
display: block;
padding: 1rem;
}
#menu-toggle:checked ~ .nav a:hover {
background: #999;
}
}
</style>
</head>
<body>
<div class="wrap">
<header>
<h1>MY WEBSITE</h1>
<input type="checkbox" id="menu-toggle">
<label for="menu-toggle" class="hamburger">☰</label>
<div class="nav">
<a href="#">Home</a>
<a href="#">About</a>
<a href="#">Services</a>
<a href="#">Contact</a>
</div>
</header>
<div class="main-content">
<h2>Main Content Area</h2>
<p>This is where the page content goes.</p>
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</div>
</div>
</body>
</html>