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CSS: How can I keep the header of an HTML table fixed while scrolling the page?

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lupidol

Programmer
Apr 23, 2008
125
IL
Hi everyone,
My table has an header line and many data lines beneath it.
The content of the table is longer then the page so when I need to go down to unseen lines the header line disappears.
Here is the code:
Code:
<!DOCTYPE html>
<html>
<head>
<style>
 th {background-color: #f1f1c1}
 th, td {border: 1px solid black}
 table.myTable {direction:rtl; width:auto; margin-left:auto; margin-right:auto; border-collapse: collapse; border: 1px solid black;}
</style>
</head>
<body>
 <table class = "myTable">
  <caption>myCaption</caption>
  <tr class = "myHeader">
   <th>#</th>
   <th>aaaaaa</th> 
   <th>bbbbb</th>
   <th>ccccc</th>
   <th>dddddd</th>
   <th>eeeeee</th>
   <th>fffff</th>
   <th>ggggggg</th>
   <th>hhhhhhh</th>
   <th>iiiiiiiii</th>
   <th>jjjjjj</th>
   <th>kkkkkk</th>
  </tr>
  <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   
  <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   
  <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
  <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   
  <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   
  <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
  <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   
  <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   
  <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
  <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   
  <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   
  <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
   <tr>
    <td>111111</td>
    <td>222222</td>
    <td>33333333</td>
    <td>444444</td>
    <td>55555</td>
    <td>666666</td>
    <td>777777</td>
    <td>888888</td>
    <td>999999</td>
    <td>1010101</td>
    <td>1111111</td>
    <td>121212</td>
   </tr>
</table>
</body>
</html>
When I run that code here is what I get:
to_forum7_pdw1sx.gif

In order to keep the title fixed on top of page while scrollin I added the <style> area a line that says:
Code:
tr.myHeader {position:fixed}
This is what the "tr {position: fixed} page" looks like:
to_forum7-2nd_tn5ihf.gif

the header row became shorter then the data rows and when scrolling it hides the data line on top.
Briefly speaking: I dont know how to make an header row of a table fixed on top of table while scrolling.
I'll be grateful if someone helps me with that.
 
Give the header row position: absolute or fixed inside a position: relative container


Chris.

Indifference will be the downfall of mankind, but who cares?
Time flies like an arrow, however, fruit flies like a banana.

Never mind these jesus character, stars had to die for me to live.
 
Hi ChrisHirst
Thank you for your responding.
This is my new style:
Code:
<style> 
th {background-color: #f1f1c1} 
th, td {border: 1px solid black} 
table.myTable {direction:rtl; width:auto; margin-left:auto; margin-right:auto; border-collapse: collapse; border: 1px solid black; position: relative} 
tr.myHeader {position: fixed} 
</style>]
Unfortunately, the header behaves as before. Something wrong in the way I put it?
Thanks/
 
As a fixed header isn't part of the rest of table rows, you can't expect similar spacing of widths, you have to handle this yourself.
Even when fixing that problem, you won't be able to let the scrolled up rows disappear above the fixed header, the table will scroll through and appear on top, unless you hide the space above the table header to browser top via another fixed intransparent element. The only way to avoid that is putting that body part of the table into it's own clipping div with scrollbar, eg as in
Bye, Olaf.
 
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