html, body {
  height: 100%;
  width: 100%;
  font-family: Helvetica;
  background: white;
}

h1, h2, h3 {
  text-align: center;
}

p {
  font-size: 20px;
  margin: 0px;
}

table {
  margin: .5em auto;
}

td {
  text-align: center;
  font-size: 30px;
  height: 100px;
  width: 100px;
  background-color: skyblue;
  border: 3px solid mediumseagreen;
  color: white;
}

a {
  color: mediumseagreen;
}

#new-game {
  width: 5%;
  height: 30px;
  margin-top: 30px;
  margin-left: 47.5%;
  cursor: pointer;
}

.instructions {
  margin: 0 auto;
  width: 50%;
  margin-top: 10px;
  text-align: center;
  padding: 2px;
}