<div class="wp-compress-pre-wrapper-v4">
    <div class="wp-compress-pre-subheader">
        <div class="col-6">
            <ul>
                <li>
                    <h3>Compression Report</h3>
                </li>
            </ul>
        </div>
        <div class="col-6 last">
            <ul>
                <li><span class="legend-original"></span>Original Size</li>
                <li><span class="legend-after"></span>After Optimization</li>
            </ul>
        </div>
    </div>

    <div class="wp-compress-chart" style="height: 400px;">
     <canvas id="wpc-canvas"></canvas>
    </div>

</div>