<!DOCTYPE HTML> <html> <head> <title>Escaped family names test</title> <meta charset="UTF-8"> <style> body { margin: 20px; } #test { font-family: \20 Arial, \20 Verdana, \20 Deja Vu Sans, \20 Fira Sans, \20 Fira Sans OT, serif; } #test2 { font-family: Arial\20 , Verdana\20 , Deja Vu Sans\20 , Fira Sans\20 , Fira Sans OT\20 , serif; } </style> </head> <body> <p id=test>Should be serif</p> <p id=test2>Should be serif</p> </body> </html>