Tryit Editor v2.3

Edit This Code:
<!DOCTYPE html> <html> <head> <style> #t1 { -moz-tab-size: 4; /* Code for Firefox */ -o-tab-size: 4; /* Code for Opera 10.6-12.1 */ tab-size: 4; } #t2 { -moz-tab-size: 16; /* Code for Firefox */ -o-tab-size: 16; /* Code for Opera 10.6-12.1 */ tab-size: 16; } </style> </head> <body> <pre id="t1"> I use tab-size 4 </pre> <pre id="t2"> I use tab-size 16 </pre> <p><b>Note:</b> The tab-size property is currently supported in Chrome, Safari 6.1+ and Opera 15+.</p> <p><b>Note:</b> Firefox supports an alternative, the -moz-tab-size property.</p> <p><b>Note:</b> Opera 10.6 to 12.1 supports an alternative, the -o-tab-size property.</p> </body> <!-- Mirrored from www.w3schools.com/cssref/tryit.asp?filename=trycss3_tab-size by HTTrack Website Copier/3.x [XR&CO'2014], Fri, 23 Jan 2015 07:53:18 GMT --> </html>
Result:
Try it Yourself - © w3schools.com