title: How can I nullify css property?
body: <p>Basically I have two external css in my page.</p>
  
  <p>The first <code>Main.css</code> contains all style rules but I don't have access to it, and hence I cannot modify it. I have access to a second file <code>Template.css</code> , so I need to override the <code>Main.css</code>'s values in <code>template.css</code>.</p>
  
  <p>This is easy for which I have to change the value, but how do I remove a property entirely?</p>
  
  <p>Like say a class <code>.c1</code> has <code>height: 40px;</code>, how do I get rid of this height property?</p>