.contenitore {
  width: 300px;
  margin-left: auto;
  margin-right: auto;
  margin-top: 50px;
  background-color: #FFFAFA;
  border-style: solid;
  border-radius: 14px;
  box-shadow: 10px 10px 5px 12px;
}

.display {
  margin-left: auto;
  margin-right: auto;
  margin-top: 10px;
  margin-bottom: 10px;
}

.pulsante {
  width: 50px;
  height: 50px;
  border-style: solid;
  border-radius: 5px;
  border-color: black;
  color: black;
  margin: 5px;
  text-align: center;
}

.tastiera {
  display: flex;
}

.sinistra {
  display: flex;
  width: 75%;
  flex-wrap: wrap;
  flex-direction: row;
  align-items: space-between;
  text-align: center;
}

.destra {
  width: 25%;
  align-content: space-between;
  text-align: center;
}

#diviso {
  background-color: mediumpurple;
}

#per {
  background-color: plum;
}

#meno {
  background-color: magenta;
}

#piu {
  background-color: pink;
}