HTML

form boilerplate

 <div id="body" class="wrapper">
    <div id="introduction">
      <h2>hForm</h2>
      <form action="." method="post" class="hform">
        <fieldset>
          <legend>Comment form</legend>
          <p><label>Name</label>
            <input type="text" name="name" value="" id="name"></p>
          <p><label>Url</label>
            <input type="text" name="address" value="" id="address"></p>
          <p><label>Email</label>
            <input type="text" name="city" value="" id="city"></p>
          <p><label>Comment</label>
            <textarea name="comment" rows="8" cols="40"></textarea></p>
          <p class="checkbox"><input type="checkbox" name="remember" value="" id="remember"> <label>Remember</label></p>
        </fieldset>
        
        <p><input type="submit" name="submit" value="Save" class="button"></p>
      </form>

Boilerplate code

override func viewDidLoad() {
    super.viewDidLoad()

    let myView = UIView()
    myView.backgroundColor = UIColor.blue
    myView.translatesAutoresizingMaskIntoConstraints = false
    view.addSubview(myView)

    // Add constraints code here
    // ...
}