How TO - On Scroll Header

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Learn how to create a fixed/sticky header on scroll with CSS and JavaScript.

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How To Create a Fixed Header on Scroll

Step 1) Add HTML:

Example

<div class="header" id="myHeader">
<h2>My Header</h2>
</div>

Step 2) Add CSS:

Example

/* Style the header */
.header {
padding: 10px 16px;
background: #555;
color: #f1f1f1;
}

/* Page content */
.content {
padding: 16px;
}

/* The sticky class is added to the header with JS when it reaches its scroll position */
.sticky {
position: fixed;
top: 0;
width: 100%
}

/* Add some top padding to the page content to prevent sudden quick movement (as the header gets a new position at the top of the page (position:fixed and top:0) */
.sticky + .content {
padding-top: 102px;
}

Step 3) Add JavaScript:

Example

// When the user scrolls the page, execute myFunction
window.onscroll = function() {myFunction()};

// Get the header
var header = document.getElementById("myHeader");

// Get the offset position of the navbar
var sticky = header.offsetTop;

// Add the sticky class to the header when you reach its scroll position. Remove "sticky" when you leave the scroll position
function myFunction() {
if (window.pageYOffset > sticky) {
header.classList.add("sticky");
} else {
header.classList.remove("sticky");
}
}

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