i don't understand this.Desktop screen resolution: 1280x1024this code: http://www.w3schools.com/bootstrap/tryit.asp?filename=trybs_grid_large&stacked=hshould do a 4:8 split right? But on my monitor it's 3:9. It sees it like a small device.Also i don't understand the screen width in pixels bcz there are smartphones with QHD resoluton (2560x1440) so would they look at col-lg-* number then ?