.canva {
  position: relative;
  width: 100%;
  height: 0;
  padding-top: 56.25%;
  padding-bottom: 48px;
  box-shadow: 0 2px 8px 0 rgba(63, 69, 81, 0.16);
  margin-top: 1.6em;
  margin-bottom: 0.9em;
  overflow: hidden;
  border-radius: 8px;
  will-change: transform;
}
.rtecenter {
  margin-left: auto;
  margin-right: auto;
}