Fonts on the site have the following baseline styles applied:
•Font Family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
•Font Colour: Dark Grey (#3f3f3f)
•Font Size: 14 pixels
•Line Height: 1.428 ( about 20 pixels for 14 px font size )
For more information about Bootstrap’s baseline properties and how to manipulate text, refer to http://getbootstrap.com/css/#type.