body {
  margin: 0;
  padding: 0;
  background-color: lightGray;
  font-family: verdana;
}

.centrar {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 100vh;
  align-items: center;
  justify-items: center; /* adjusted */
}

.text {
  border: 2px solid white;
  border-radius: 2vw;
  box-shadow: 5px 10px 8px gray;
  padding: 1vw;
  background: lightcyan;
  color: white;
  font-size: 2vw;
  text-decoration: white;
}