body {
  background-color: #f7c1d9;
  font-family: "Courier New", Courier, monospace;
}

.title {
  text-align: center;
  margin: 0.2em;
  text-shadow: 3px 3px black;
  color: #fff;
}

.subtitle {
  text-shadow: 2px 2px black;
  color: #fff;
}

hr {
  width: 85%;
}

table {
  border: 2px solid black;
  background-color: #03a9f4;
  width: 90%;
  max-width: 50%;
  margin-top: 20px;
  margin-left: auto;
  margin-right: auto;
  padding: 10px;
}

#header th {
  background-color: #fff;
  border: 2px solid black;
  height: 90px;
  font-size: 40px;
}

#freeSpace {
  width: 0;
  height: 0;
  max-width: 0;
}

#row1,
#row2,
#row3,
#row4,
#row5,
tr > td {
  border: 2px solid black;
  background-color: #fff;
  padding: 2px 5px;
  text-align: center;
  width: 20px;
  height: 90px;
}

.marked {
  background-color: #f7c1d9;
  color: white;
  text-shadow: 1px 1px black;
}

#n3 {
  background-color: #f7c1d9;
}

#button {
  font-family: "Courier New", Courier, monospace;
  font-size: 20px;
  display: block;
  margin: 20px auto;
  background-color: #03a9f4;
  color: white;
  border: 2px solid black;
  width: 300px;
  height: 50px;
}