title: How to append CSS transform
body: <p>I am unsure if this is possible but I hope so.</p>
  <p>I have an element with a translation transform, which I have no control over (it is set by an NPM package that I am using). I would like to set a scale transform on that element and be able to retain whatever transform the element already has, like a concatenation.</p>
  <p>Imagine that this is similar to what I want to achieve:</p>
  <pre class="lang-css prettyprint-override"><code>transform: +scale(1.01);
  </code></pre>
  <p>Is this doable, and if so, how?</p>