.panel-content {
  display: flex;
}

.square {
  width: 100px;
  height: 100px;
  background: #eee;
  font-size: 800%;
  line-height:1em;
  text-align:center;

  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -o-user-select: none;
  user-select: none;
}

#ticktacktoe table, th, td {
  border: 1px solid black;
}

/* chat */
#message-board {
  background-color: black;
  width: 100%;
  margin: 0px 20px;
}

#chat-content {
  background-color: blue;
  height: 95%;
}

#chat-input {
  width: 90%;
  height: 20%;
}