body {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  font-size: xx-large;
  font-family: "Gill Sans", "Gill Sans MT", Calibri, "Trebuchet MS", sans-serif;
  margin-top: 30px;
}

div {
  display: flex;
  flex-direction: column;
  background-color: azure;
  padding: 20px;
  border: 1px solid black;
}

#body {
  background-color: white;
  flex-direction: row;
  border: 0px;
  gap: 50px;
}

h3 {
  text-align: center;
}

button {
  cursor: pointer;
  font-size: xx-large;
  font-family: "Gill Sans", "Gill Sans MT", Calibri, "Trebuchet MS", sans-serif;
}

td {
  padding: 20px;
  text-align: center;
  border-collapse: collapse;
}

td:nth-child(5n) {
  border-right: 3px solid #000;
}

tr:nth-child(3n) td {
  border-bottom: 3px solid #000;
}

td:first-child {
  border-left: 3px solid #000;
}

tr:first-child td {
  border-top: 3px solid #000;
}

table {
  margin-top: 50px;
  margin-bottom: 50px;
  border: 3px solid black;
  border-radius: 20px;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
}