button {
  background-color: transparent;
  border: none;
  padding: 0;
  font: inherit;
  cursor: pointer;
}

/* target classes like .infocard1, .infocard2 etc. */
[class^="infocard"] {
  /* remove from layout by default so parent size follows only visible content */
  display: none;
  visibility: hidden;
}

/* add .visible to show an infocard when needed */
[class^="infocard"].visible {
  display: block;
  visibility: visible;
}