Open Sans in action on admirhadzic.com

.header-1 { font-family: 'Open Sans', sans-serif; font-size: 40px; font-style: normal; font-weight: 300; letter-spacing: normal; line-height: 40px; text-transform: none; color: #DEE2E9; }
.header-2 { font-family: 'Open Sans', sans-serif; font-size: 20px; font-style: normal; font-weight: 600; letter-spacing: normal; line-height: 20px; text-transform: none; color: #77E38C; }
.content-1 { font-family: 'Open Sans', sans-serif; font-size: 15px; font-style: normal; font-weight: 300; letter-spacing: normal; line-height: 22.5px; text-transform: none; color: #7C7F85; }
.content-2 { font-family: 'Open Sans', sans-serif; font-size: 15px; font-style: normal; font-weight: 300; letter-spacing: normal; line-height: 22.5px; text-transform: none; color: #7C7F85; }
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 13 Nov 2013.

Liked by:
@mikesten @Robodisco @delmontocom @TrishReda

Open Sans