SnapKit is a DSL to make Auto Layout easy on both iOS and OS X.

• Simple & Expressive chaining DSL allows building constraints with minimal amounts of code while ensuring they are easy to read and understand.
• Type Safe by design to reduce programmer error and keep invalid constraints from being created in the first place for maximized productivity.
• Compatible for both iOS and OS X apps installable through Cocoapods or Carthage.
• Free to use in all projects and licensed under the flexible MIT license.

let box = UIView()
let container = UIView()

container.addSubview(box)

box.snp.makeConstraints { (make) -> Void in
    make.size.equalTo(50)
    make.center.equalTo(container)
}

makes