Work Sans in action on pulsar.apache.org

• .header-1 { font-family: "Work Sans", -apple-system, Frutiger, "Frutiger Linotype", Univers, Calibri, "Gill Sans", "Gill Sans MT", "Myriad Pro", Myriad, "DejaVu Sans Condensed", "Liberation Sans", "Nimbus Sans L", Tahoma, Geneva, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: 0px; line-height: 48px; text-transform: none; color: #188FFF; }
• .content-1 { font-family: "Work Sans", -apple-system, Frutiger, "Frutiger Linotype", Univers, Calibri, "Gill Sans", "Gill Sans MT", "Myriad Pro", Myriad, "DejaVu Sans Condensed", "Liberation Sans", "Nimbus Sans L", Tahoma, Geneva, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: 0px; line-height: 40px; text-transform: none; color: #282826; }

Work Sans is available from Font Squirrel, Google Web Fonts and Typekit.