<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <style> table tbody { display:block; height:500px; overflow-y:scroll; } td, th{border:solid red 1px;} table thead, tbody tr { display:table; width:100%; table-layout:fixed; } table thead { /*Standard */ width: calc( 100% - 8px ); /*chrome safari*/ width: -webkit-calc( 100% - 8px ); /*Firefox*/ width: -moz-calc( 100% - 8px ); } </style> </head> <body> <table> <thead> <tr><th>aaa</th><th>bbb</th><th>aaa</th><th>bbb</th><th>aaa</th><th>bbb</th></tr> </thead> <tbody> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> <tr><td>1</td><td>AAAAAAA</td><td>2</td><td>BBBBBBB</td><td>3</td><td>CCCCCC</td></tr> </tbody> </table> </body> </html>