title: Load content in a div without reloading the page
body: <p>First of all I warn you i am new in HTML development...</p>
  
  <p>I am creating a website using Bootstrap. I have some buttons on the left as you can see in the screenshot and I want to content on the right to change without having to load the whole page. </p>
  
  <p><img src="https://i.stack.imgur.com/dAUJa.png" alt="Website structure"></p>
  
  <p>Any help here? Thanks a lot!</p>