title: How to remove default margin in angular app?
body: <p>Very simple app.component.html:</p>
  
  <pre><code>&lt;input type="submit" value="Sub"/&gt;
  </code></pre>
  
  <p>The result of the code above</p>
  
  <p><a href="https://i.stack.imgur.com/THQDA.png" rel="noreferrer"><img src="https://i.stack.imgur.com/THQDA.png" alt="enter image description here"></a></p>
  
  <p>How to remove margin arround the button? I want the button is located on the top left without indent.</p>