index.css

@import url(https://fonts.googleapis.com/css?family=Sigmar+One);

body {
  background-color: black;
  font: 700 20px/1.5 'Indie Flower', cursive;
  text-align: center;
}

h1 {
  font-size: 50px;
  text-transform: uppercase;
  color: #336E7B;
  padding: 0;
  margin: 0 auto;
  position: relative;
  top: 50px;
}

table {
  border-collapse: collapse;
  margin: 0 auto;
  cursor: pointer;
  clear: both;
}

td {
  width: 150px;
  height: 150px;
  font-size: 120px;
}

.bottom {
  border-bottom: 6px solid #336E7B;
}

.right {
  border-right: 6px solid #336E7B;
}

.x::after {
  content: "x";
  color: #444;
}

.o::after {
  content: "o";
  color: #FFF;
}

#message {
  font-size: 20px;
  color: yellowgreen;
  margin-top: 10px;
  border: 3px dotted orangered;
}
h1{
    color: aqua;
}

.button {
  background-color: #336E7B;
  border: none;
  color: #FFF;
  padding: 13px 32px;
  text-align: center;
  text-decoration: none;
  font-size: 16px;
  border-radius: 4px;
  border: 3px solid #336E7B;
  font: 700 20px/1.5 'Indie Flower', cursive;
}

.button:hover {
  color: #336E7B;
  background-color: transparent;
  border: 3px solid #336E7B;
  -webkit-transition-duration: 0.4s; /* Safari */
  transition-duration: 0.4s;
}

#aside {
  float: left;
  position: relative;
  top: 250px;
  left: 80px;
  text-align: left;
}