Arial
Arial, "Helvetica Neue", Helvetica, "Nimbus Sans L", FreeSans, sans-serif

Arial Black
"Arial Black", "Arial Bold", Arial-BoldMT, Gadget, sans-serif

Arial Rounded MT Bold
"Arial Rounded MT Bold", "Helvetica Rounded", Arial, sans-serif

Baskerville
Baskerville, "Baskerville Old Face", "Bitstream Charter", Times, "Times New Roman", serif

Bookman Old Style
"Bookman Old Style", "URW Bookman L", Georgia, Times, "Times New Roman", serif

Courier New
"Courier New", Courier, "Lucida Sans Typewriter", "Lucida Typewriter", monospace

Futura
Futura, Futura-Medium, "Futura Medium", "Century Gothic", CenturyGothic, AppleGothic, "URW Gothic L", sans-serif

Georgia
Georgia, "DejaVu Serif", Times, "Times New Roman", serif

Gill Sans
"Gill Sans", GillSans, "Gill Sans MT", "Trebuchet MS", Calibri, "Nimbus Sans L", sans-serif

Helvetica
Helvetica, "Helvetica Neue", Arial, "Nimbus Sans L", FreeSans, sans-serif

Helvetica Neue
"Helvetica Neue", Arial, Helvetica, "Nimbus Sans L", FreeSans, sans-serif

Lucida Grande
"Lucida Grande", "Lucida Sans Unicode", "DejaVu Sans", sans-serif

Monaco
Monaco, "Lucida Console", "DejaVu Sans Mono", monospace

Palatino
Palatino, "Palatino Linotype", "Hoefler Text", Gentium, Times, "Times New Roman", serif

Times New Roman
TimesNewRoman, "Times New Roman", Times, Baskerville, Georgia, serif

Trebuchet MS
"Trebuchet MS", Tahoma, "DejaVu Sans", Arial, sans-serif

Verdana
Verdana, Tahoma, Geneva, "DejaVu Sans", sans-serif

Work Sans 
"Work Sans", sans-serif 
400,700 

Fira Sans 
"Fira Sans", sans-serif 
400,700 

Source Sans Pro 
"Source Sans Pro", sans-serif 
400,700 

Source Serif Pro 
"Source Serif Pro", serif 
400,700 

Neuton 
Neuton, serif 
400,700 

Poppins 
Poppins, sans-serif 
400,700 

Merriweather 
Merriweather, serif 
400,700 

Open Sans 
"Open Sans", sans-serif 
400,700 

Roboto 
Roboto, sans-serif 
400,700 

Roboto Slab 
"Roboto Slab", serif 
400,700 

Lato 
Lato, sans-serif 
400,700 

Libre Baskerville 
"Libre Baskerville", serif 
400,700 

Montserrat 
Montserrat, sans-serif 
400,700