add-custom-html.php

public function add_custom_html() {        
            $content = "
                    <table>
                        <tr>
                            <th></th>
                            <th>Small</th>
                            <th>Medium</th>
                            <th>Large</th>
                        </tr>

                        <tr>
                            <td>USA</td>
                            <td>2-4</td>
                            <td>6-8</td>
                            <td>9-12</td>
                        </tr>

                        <tr>
                            <td>UK</td>
                            <td>4-6</td>
                            <td>8-10</td>
                            <td>12-14</td>
                        </tr>

                        <tr>
                            <td>India</td>
                            <td>2-4</td>
                            <td>6-8</td>
                            <td>10-12</td>
                        </tr>
                    
                    </table>
            
                ";
            
                echo $content;
 }