I have a small code that calculates the width of items based on nr of items published and set a last class. At the moment this is a little bit slow to use since the snippet needs to be added and changed names on pr item i am using it for. If anyone have time to and are able to change this into a better solution then go ahead and bid. It should not take more than maybe 1 hour if you know php well.
Files to be submitted to the interested people.