I'm now learning responsive webdesign and got stuck on this. My PSD template has 3 columns each with 250 pixels width. The problem is zurb/skeleton framework doesn't have a column width of 250px wide column. The closest column to 250px are the ones below
.container .three.columns { width: 160px; }
.container .four.columns { width: 220px; }
.container .five.columns { width: 280px; }
How do I create 250px wide 3 columns using zurb/skeleton?