Open Sans in action on weare2ndfloor.com

.header-1 { font-family: 'Open Sans', Arial, Verdana, sans-serif; font-size: 49px; font-style: normal; font-weight: 100; letter-spacing: normal; line-height: 63.70000076293945px; text-transform: none; color: #252627; }
.content-1 { font-family: 'Open Sans', Arial, Verdana, sans-serif; font-size: 14px; font-style: italic; font-weight: normal; letter-spacing: normal; line-height: 22.399999618530273px; text-transform: none; color: #F3714F; }
.content-2 { font-family: 'Open Sans', Arial, Verdana, sans-serif; font-size: 19px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 30.399999618530273px; text-transform: none; color: #5D6062; }
.content-3 { font-family: 'Open Sans', Arial, Verdana, sans-serif; font-size: 19px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 30.399999618530273px; text-transform: none; color: #5D6062; }
Open Sans is available from Font Squirrel, Google Web Fonts, MyFonts and Typekit.

Try this combination out in Pair and Compare.
Found by @mikesten on 29 Jan 2014.

Liked by:
@mikesten @Arsit_Mariusz

Open Sans