<!DOCTYPE html> <html> <style> meter { padding: 5px } body > meter:nth-child(1) { -moz-appearance: none; } body > meter:nth-child(2)::-moz-meter-bar { -moz-appearance: none; } body > meter:nth-child(3) { background: red; } body > meter:nth-child(4)::-moz-meter-bar { background: red; } body > meter:nth-child(5) { border: 2px solid red; } body > meter:nth-child(6)::-moz-meter-bar { border: 5px solid red; } </style> <body> <meter value=1></meter> <meter value=1></meter> <meter value=1></meter> <meter value=1></meter> <meter value=1></meter> <meter value=1></meter> </body> </html>