table {
  border-collapse: separate;
  border-spacing: 10px;
  margin: 20px auto;
  background-color: #27F576;
  border: 3px solid black;
  padding: 15px;
  border-radius: 10px;
}

th, td {
  text-align: center;
  vertical-align: middle;
  font-family: Arial, sans-serif;
  font-size: 13px;
  padding: 10px;
  width: 100px;
  height: 100px;
}

td {
  border: 2px solid red;
  border-radius: 10px;
  background-color: white;
  cursor: pointer;
}

th {
  border: 2px solid black;
  border-radius: 10px;
  background-color: #27F576;
}

.time {
  width: 60px;
  font-weight: bold;
}

td:hover {
  background-color: #F0FF30;
}

th:hover {
  background-color: #F0FF30;
}

.big {
  width: 140px;
  height: 220px;
  border-radius: 10px;
}