title: Angular Material only works with Angular Flex-layout?
body: <p>In a recent interview I was asked if I knew what flex is, to which I replied that I didn't have much knowledge about it. The interviewer was shocked and then asked how do you even use material if you do not know flex. </p>
  
  <blockquote>
    <p>He said Angular Material cannot be customized unless we use flex.</p>
  </blockquote>
  
  <p>Is this correct? Because in my previous project I did use Angular Material and customized it without using any flex property. </p>
  
  <p>Can you guys clarify <strong>if Angular Flex is compulsory to use Angular Material</strong>?</p>