title: Play 2 tweens in parallel with GSAP?
body: <p>Can someone briefly explain what is the best way to play 2 tweens/animations in parallel in the same timeline using <strong>GSAP 3</strong>?</p>
  <p>Example:</p>
  <pre><code>tl = gsap.timeline();
  
  tl
  .to( 'EL1', 1, {
     prop: value,
  })
  .to( 'EL2', 1, {
     prop: value
  }, '-=1');
  </code></pre>
  <p>I would do it this way: <code>'-=1'</code>. Do you all have a better solution for me?</p>