node_modules/eslint/lib/cli-engine/formatters/html-template-message.html

<tr style="display:none" class="f-<%= parentIndex %>">
    <td><%= lineNumber %>:<%= columnNumber %></td>
    <td class="clr-<%= severityNumber %>"><%= severityName %></td>
    <td><%- message %></td>
    <td>
        <a href="<%= ruleUrl %>" target="_blank" rel="noopener noreferrer"><%= ruleId %></a>
    </td>
</tr>