Do I have to add images with the same height and width to "properly" use the the "Feature image" ????
(Thumbnails height depends on the "feature image" height !!!!!)
example : http://i906.photobucket.com/albums/ac264/leblogger/thumbnailexample.png
the image on the left is 650x374, the on on the right is 848x452 !!!!!!!!!!!!!!!