body {
  font-family: sans-serif;
  display: flex;
  align-items: center;
  padding: 2em;
  gap: 3em;
}
.grid {
  display: grid;
  grid-template-columns: repeat(2, 40px);
  grid-template-rows: repeat(4, 40px);
  gap: 10px;
}
.result {
  font-size: 1.5em;
  line-height: 1.8em;
}
.btnText {
  font-size: 2em;
  cursor: pointer;
  padding: 0;
  margin: 0;
  font-family: inherit;
}