title: How to change css style in typescript?
body: <p>In typescript how to change css styling just as I would do this way?</p>
  
  <pre><code>$(".s-hand").css("transform", "translate(-50%, -100%) rotate(" + s*6 + "deg)");
  </code></pre>
  
  <p>or</p>
  
  <pre><code>var hourPointer   = document.querySelector('.hour')
  hourPointer.style[transform]   = `rotate(${hour}deg)`;
  </code></pre>
  
  <p>Because I have no idea how to achieve that..</p>