.formul  { color: black; font-size: 11px; font-family: Arial, Helvetica, Geneva, Swiss, SunSans-Regular }
.formuldouz  { color: black; font-size: 12px; font-family: Arial, Helvetica, Geneva, Swiss, SunSans-Regular; text-decoration: none }
.textevert  { color: teal; font-size: 11px; font-family: Arial, Helvetica, Geneva, Swiss, SunSans-Regular }