title: expanding widgets inside a Qtabwidget
body: <p>Why does the widgets inside a <code>QTabWidget</code> don't resize?</p>
  
  <p>All my widgets resize except for the ones inside the tabs, even the tabs resize, but not the items inside it.</p>
  
  <p>Is this because of the type of layout as I show in the figure?</p>
  
  <p><img src="https://i.stack.imgur.com/VNiuN.png" alt="enter image description here"></p>
  
  <p>I can's assign a layout to it. this is before and after maximizing the window.</p>
  
  <p><img src="https://i.stack.imgur.com/CkjL9.png" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/iicby.png" alt="enter image description here"></p>