.myDiv {
  border: 5px yellow; /* Correcting the border property */
  background-color: lightblue;
  text-align: center;
}

.meDiv {
  border: 10px solid lightblue; /* Correcting the border property */
  background-color: green;
}

.youDiv {
  border: 1px purple; /* Correcting the border property */
  background-color: red;
  text-align: center;
}