To create a sticky table header, use position: sticky; 1. Use a standard table structure to include head and tbody; 2. Set position: sticky, top: 0, background color and z-index for head th; 3. Set tbody to display: block and set fixed height and overflow-y: auto for independent scrolling; 4. It is recommended to use table-layout: fixed to keep the column width consistent; 5. Make sure the parent container has no overflow: hidden to avoid cropping sticky headers. This method allows the header to always be fixed at the top of the viewport when the page is scrolling.
Creating a sticky table header with CSS is straightforward using the position: sticky
property. This makes the table header ( <thead> ) stay visible at the top of the viewport as users scroll down through the table body. <img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/175408008389426.jpeg" class="lazy" alt="How to create a sticky table header with CSS?"><p> Here's how to do it:</p>
<h3 id="Basic-HTML-Structure"> 1. Basic HTML Structure</h3>
<p> Start with a standard table structure: </p>
<img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/175408008464678.jpeg" class="lazy" alt="How to create a sticky table header with CSS?"><pre class='brush:php;toolbar:false;'> <table>
<head>
<tr>
<th>Name</th>
<th>Age</th>
<th>City</th>
</tr>
</head>
<tbody>
<tr>
<td>John</td>
<td>30</td>
<td>New York</td>
</tr>
<!-- More rows -->
</tbody>
</table></pre><h3 id="Apply-CSS-for-Sticky-Header"> 2. Apply CSS for Sticky Header</h3><p> Use <code>position: sticky
on the <thead>
or <th>
elements. However, position: sticky
works best when applied to block-level elements inside a container with a defined stacking context.
table { width: 100%; border-collapse: collapse; max-height: 300px; overflow: hidden; display: block; } thead th { position: sticky; top: 0; background-color: #f8f9fa; border-bottom: 2px solid #ddd; z-index: 10; } tbody { display: block; overflow-y: auto; max-height: 300px; } tr { display: table; width: 100%; table-layout: fixed; }
3. Why This Works
-
display: block
on<tbody>
allows independent scrolling of the body. -
position: sticky
andtop: 0
on<th>
keeps the header at the top of the viewport when scrolling. -
z-index: 10
ensures the header stays above other content. -
background-color
prevents visual overlap with rows beneath.
4. Important Notes
- The sticky behavior applies to the
<th>
elements, not the entire<thead>
, so styling should targetthead th
. - The table may need
table-layout: fixed
to keep column widths consistent. - If the table is inside a container, ensure no parent has
overflow: hidden
that could clip the sticky header.
5. Full Example
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <title>Sticky Table Header</title> <style> table { width: 100%; border-collapse: collapse; display: block; } thead th { position: sticky; top: 0; background: white; padding: 10px; border-bottom: 2px solid #000; z-index: 10; } tbody { display: block; height: 200px; overflow-y: auto; } tr { display: table; width: 100%; table-layout: fixed; } td { padding: 10px; border-bottom: 1px solid #eee; } </style> </head> <body> <table> <head> <tr> <th>Name</th> <th>Age</th> <th>City</th> </tr> </head> <tbody> <tr><td>John</td><td>30</td><td>New York</td></tr> <tr><td>Jane</td><td>25</td><td>Los Angeles</td></tr> <tr><td>Sam</td><td>35</td><td>Chicago</td></tr> <!-- Repeat more rows to enable scrolling --> </tbody> </table> </body> </html>
Basically, it's not complicated — just use position: sticky
on the header cells and structure your table so the body can scroll independently. The key is making tbody
scrollable and keeping the header fixed at the top.

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