<select id="filterCampaign">
<option value="all">All Campaigns</option>
</select>
<table>
<thead>
<tr>
<th>Campaign</th>
<th>Impressions</th>
<th>Clicks</th>
<th>CTR</th>
<th>Conversions</th>
</tr>
</thead>
<tbody id="reportTable"></tbody>
</table>
<button onclick="runReport()">Run Report</button>