.block-editor .gu-block {
  z-index: 10;
  overflow: hidden;
  height: 150px;
  position: relative;
  border-radius: 10px
}
.block-editor .gu-block:after,
.block-editor .gu-block:before {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0px;
  left:0;
  text-align: center;
  background-color: var(--colore-blocco, #DDD);
  text-transform: uppercase;
  font-family: sans-serif;
}
.block-editor .gu-block:before {
  content: var(--nome-blocco);
  font-size: 2rem;
  padding-top: 5%;
  padding-bottom: 10px;
  font-weight: bold;
}
.block-editor .gu-block:after {
  content: var(--titolo-blocco);
  top: 60%;
}