#tool-area {
  padding: 24px;
}
#input-area {
  text-align: center;
}

input {
  display:inline-block;
  width: 3.6rem;
  font-size: 2rem;
  margin-left: 16px;
}
#year {
  width: 6rem;
  margin: 0;
}
button {
  margin-left: 16px;
  font-size: 2rem;
  height: 48px;
  line-height: 2rem;
  padding: 0 36px;
}
#display-area {
 margin-top: 64px;
 font-size: 1.4rem;
}
#display-area .list {
  display: grid;
  grid-template-columns: 25% 25% 50%;
  grid-gap: 4px;
  margin-top: 24px;
  border-bottom: solid 1px gray;
  padding: 0 16px;
}