title: Bootstrap: Remove form field border
body: <p>I am new to CSS and I am using Bootstrap and I want to use forms in 2 ways: With or without borders around the form fields. How can I achieve that best? Here is an example of a Bootstrap form I want to remove the borders for: plnkr.co/edit/xxx1Wy4kyCESNsChK4Ra?p=preview.</p>
  
  <p>For curiosity, the reason I want this, is that I want to first show the user the data he has, and then toggle showing the borders according to if the form is in "edit" mode or not. The user can enter "edit" mode by clicking an "edit"-link or just start editing a field.</p>