* {
  box-sizing: border-box;
}

body {
  background-color: cadetblue;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  font-family: "Bitcount Grid Double", system-ui;
  gap: 10px;
  padding: 10px;
}

button {
  padding: 10px;
  border-radius: 5px;
  background-color: aquamarine;
}

.container {
  display: flex;
  flex-wrap: wrap;

  width: 650px;
  height: 650px;

  border: 1px solid black;
}

.row {
  border: 1px solid #ddd;
}