.responsive-square {
  width: 50vw;
  height: 50vw;
  aspect-ratio: 1 / 1;
  background: #c9a899;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: bold;
  margin: 0;
  padding: 0;
  border: 0;
}
.responsive-square h4 {
  font-family: 'GROW B', Arial, sans-serif;
  text-align: center;
  margin: 0;
  padding: 0;
}
.responsive-square {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #c9a899;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: bold;
  margin: 0;
  padding: 0;
  border: 0;
}
/* WICHTIG: em NICHT kursiv */
.responsive-square h4 em {
  font-style: normal;
}
@media (max-width: 768px) {
  .responsive-square h4 {
    font-size: 5vw !important;
    line-height: 1.1;
}