<header id="mainHeader" class="sticky-header">
<div class="logo">Brand</div>
<nav>
<a href="#">Home</a>
<a href="#">About</a>
<a href="#">Contact</a>
</nav>
</header>
<main class="content">
<h1>Scroll Down</h1>
<p>The header will disappear to give you more reading space.</p>
<p>Scroll back up to see it return.</p>
<!-- Spacer for scrolling -->
<div style="height: 1500px"></div>
</main>.sticky-header {
font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
position: fixed;
top: 0;
left: 0;
width: 100%;
background: #ffffff;
padding: 15px 30px;
box-shadow: 0 2px 10px rgba(0,0,0,0.1);
display: flex;
justify-content: space-between;
align-items: center;
transition: transform 0.3s ease;
z-index: 1000;
box-sizing: border-box;
}
.sticky-header.hide {
transform: translateY(-100%);
}
.logo {
font-weight: 800;
font-size: 1.5rem;
color: #1f2937;
}
nav a {
text-decoration: none;
color: #4b5563;
margin-left: 20px;
font-weight: 500;
transition: color 0.2s;
}
nav a:hover {
color: #2563eb;
}
.content {
padding-top: 100px;
padding-left: 30px;
font-family: system-ui, "Segoe UI", Roboto, sans-serif;
}let lastScrollTop = 0;
const header = document.getElementById("mainHeader");
window.addEventListener("scroll", () => {
const scrollTop = window.pageYOffset || document.documentElement.scrollTop;
if (scrollTop > lastScrollTop) {
// Scroll Down
header.classList.add("hide");
} else {
// Scroll Up
header.classList.remove("hide");
}
lastScrollTop = scrollTop <= 0 ? 0 : scrollTop;
});Nothing to show yetType HTML, CSS or JavaScript and your page appears here.
Click any element to find its code Esc
Check this code before you run it
It came from a shared link. It runs with fewer permissions, so it cannot open pop-ups, submit forms or start downloads.
0.00s / 0.00s
Nothing has animated yet. Hover, click or type in the preview and each CSS animation, transition or
element.animate() call shows up here as it plays.