<table style="width: 100%">
    <tr>
      <th>Part 1 </th>
    </tr>
    <tr>
      <td style="width: 80%"><ul>
          <li style="text-align: left;">Summary</li>
          <li style="text-align: left;">Target</li>
          <li style="text-align: left;">Material</li>
        </ul></td>
        <td>test</td>
    </tr>
  </table>

table {
                display: table;
                width: 100%;
                border-collapse: collapse;
                border-spacing: 0;
                border: 0px;
                outline: none;
}
th, td {
                padding: 5px 10px;
                border: 0px;
                font-weight: 400;
                text-align: left;
                outline: none;
                border-collapse: collapse;
}

border: 0px !important