http://stackoverflow.com/questions/18076173/how-to-keep-an-image-centered-and-responsive
vertikal und horizontal zentrieren
A New Batch Of Resources And Tools For Web Designers – 51 Items
Choosing A Responsive Image Solution
jQuery mouseleave() Method
magnificent popup
maximage2 slideshow
photo gallery
Font size anpassen
http://simplefocus.com/flowtype/