Tic Tac Toe Game

To create a Tic Tac Toe game in HTML, follow these steps:

1. First, create a 3x3 grid using the HTML table tag.

<table>
  <tr>
    <td></td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td></td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td></td>
    <td></td>
    <td></td>
  </tr>
</table>

2. Add a class to each table cell, so that it can be identified in JavaScript. You can name the class anything you like, but for this example, we will name it 'cell'.

<table>
  <tr>
    <td class='cell'></td>
    <td class='cell'></td>
    <td class='cell'></td>
  </tr>
  <tr>
    <td class='cell'></td>
    <td class='cell'></td>
    <td class='cell'></td>
  </tr>
  <tr>
    <td class='cell'></td>
    <td class='cell'></td>
    <td class='cell'></td>
  </tr>
</table>

3. Create a JavaScript function that will detect when a cell is clicked, and change the content to an 'X' or 'O' depending on whose turn it is. You can use a variable to keep track of whose turn it is.

<script>
  var turn = 'X';
  function play(cell) {
    cell.innerHTML = turn;
    turn = (turn == 'X') ? 'O' : 'X';
  }
</script>

4. Add an onclick event to each cell that calls the play function when clicked.

<table>
  <tr>
    <td class='cell' onclick='play(this)'></td>
    <td class='cell' onclick='play(this)'></td>
    <td class='cell' onclick='play(this)'></td>
  </tr>
  <tr>
    <td class='cell' onclick='play(this)'></td>
    <td class='cell' onclick='play(this)'></td>
    <td class='cell' onclick='play(this)'></td>
  </tr>
  <tr>
    <td class='cell' onclick='play(this)'></td>
    <td class='cell' onclick='play(this)'></td>
    <td class='cell' onclick='play(this)'></td>
  </tr>
</table>

5. Add some CSS to style the game board and cells.

<style>
  table {
    border-collapse: collapse;
    margin: auto;
  }
  td {
    border: 1px solid black;
    width: 50px;
    height: 50px;
    font-size: 30px;
    text-align: center;
    vertical-align: middle;
    cursor: pointer;
  }
</style>

With these steps, you should have a functioning Tic Tac Toe game in HTML!