Generate professional HTML data reports with charts, metrics dashboards, and insights. Use when creating analysis reports, data summaries, or presentations that combine text and visualizations.
Use this skill when creating:
A well-structured report includes:
/* Primary brand color */
--primary-green: #1a6642;
/* Semantic colors */
--positive: #1a6642; /* Green for positive values/growth */
--negative: #dc3545; /* Red for negative values/decline */
/* Neutral */
--text-primary: #2d2d2d;
--text-secondary: #666666;
--border: #e8e8e8;
--background-subtle: #f8f9fa;
<div class="metric-card">
<div class="metric-value positive">+15.2%</div>
<div class="metric-label">Growth Rate</div>
<div class="metric-change positive">+2.3% vs prior</div>
</div>
<div class="callout">
<p><strong>Key Finding:</strong> Important insight or summary here.</p>
</div>
<table class="data-table">
<thead>
<tr><th>Column 1</th><th class="text-right">Value</th></tr>
</thead>
<tbody>
<tr><td>Data</td><td class="text-right mono">1,234</td></tr>
<tr class="highlight"><td><strong>Top Item</strong></td><td class="text-right mono">5,678</td></tr>
</tbody>
</table>
<ol class="rankings">
<li><strong>Item Name</strong> - Description with <span class="value">1,234</span> units</li>
</ol>
<figure class="chart-container">
<img src="data:image/png;base64,..." alt="Description of chart">
<figcaption>Figure 1: Chart title and brief explanation</figcaption>
</figure>
<div class="insights-grid">
<div class="insight-card">
<h4>Insight Title</h4>
<p>Description of the insight.</p>
</div>
</div>
When including charts generated with the chart-style-guide skill, embed them as base64:
import base64
# After saving chart
with open('/home/user/chart.png', 'rb') as f:
chart_base64 = base64.b64encode(f.read()).decode('utf-8')
# Use in HTML
# <img src="data:image/png;base64,{chart_base64}" alt="...">
The template includes @media print styles for clean PDF output:
Use this complete template as the base for all reports. Copy and customize the sections you need:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Data Report - TextQL</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&display=swap" rel="stylesheet">
<style>
:root {
--primary-green: #1a6642;
--primary-green-light: #2d8659;
--positive: #1a6642;
--negative: #dc3545;
--text-primary: #2d2d2d;
--text-secondary: #666666;
--text-muted: #888888;
--border: #e8e8e8;
--background-subtle: #f8f9fa;
--white: #ffffff;
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
font-size: 14px;
line-height: 1.6;
color: var(--text-primary);
background: var(--white);
max-width: 1000px;
margin: 0 auto;
padding: 40px 24px;
}
/* Typography */
h1, h2, h3, h4 {
font-family: 'JetBrains Mono', monospace;
font-weight: 600;
line-height: 1.3;
}
h1 {
font-size: 28px;
color: var(--text-primary);
margin-bottom: 8px;
}
h2 {
font-size: 20px;
color: var(--text-primary);
margin: 32px 0 16px 0;
padding-bottom: 8px;
border-bottom: 1px solid var(--border);
}
h3 {
font-size: 16px;
color: var(--text-primary);
margin: 24px 0 12px 0;
}
p {
margin-bottom: 16px;
color: var(--text-primary);
}
/* Header */
.report-header {
margin-bottom: 32px;
padding-bottom: 24px;
border-bottom: 3px solid var(--primary-green);
}
.report-type {
font-family: 'JetBrains Mono', monospace;
font-size: 11px;
font-weight: 600;
text-transform: uppercase;
letter-spacing: 1px;
color: var(--primary-green);
margin-bottom: 8px;
}
.report-subtitle {
font-size: 16px;
color: var(--text-secondary);
margin-bottom: 4px;
}
.report-date {
font-size: 13px;
color: var(--text-muted);
}
/* Metrics Dashboard */
.metrics-grid {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 16px;
margin: 24px 0;
}
.metric-card {
background: var(--background-subtle);
border-radius: 8px;
padding: 20px;
text-align: center;
}
.metric-value {
font-family: 'JetBrains Mono', monospace;
font-size: 24px;
font-weight: 700;
margin-bottom: 4px;
}
.metric-value.positive { color: var(--positive); }
.metric-value.negative { color: var(--negative); }
.metric-value.neutral { color: var(--text-primary); }
.metric-label {
font-size: 12px;
color: var(--text-secondary);
text-transform: uppercase;
letter-spacing: 0.5px;
}
.metric-change {
font-size: 11px;
margin-top: 4px;
}
.metric-change.positive { color: var(--positive); }
.metric-change.negative { color: var(--negative); }
/* Callout Box */
.callout {
background: var(--background-subtle);
border-left: 4px solid var(--primary-green);
padding: 16px 20px;
margin: 24px 0;
border-radius: 0 8px 8px 0;
}
.callout strong { color: var(--primary-green); }
.callout p:last-child { margin-bottom: 0; }
/* Charts and Images */
.chart-container {
margin: 24px 0;
text-align: center;
}
.chart-container img {
max-width: 100%;
height: auto;
border-radius: 8px;
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}
.chart-container figcaption {
font-size: 12px;
color: var(--text-secondary);
margin-top: 12px;
font-style: italic;
}
/* Data Tables */
.data-table {
width: 100%;
border-collapse: collapse;
margin: 24px 0;
font-size: 13px;
}
.data-table th {
font-family: 'JetBrains Mono', monospace;
font-weight: 600;
text-align: left;
padding: 12px 16px;
background: var(--background-subtle);
border-bottom: 2px solid var(--border);
font-size: 11px;
text-transform: uppercase;
letter-spacing: 0.5px;
color: var(--text-secondary);
}
.data-table td {
padding: 12px 16px;
border-bottom: 1px solid var(--border);
}
.data-table tbody tr:hover { background: var(--background-subtle); }
.data-table tr.highlight { background: rgba(26, 102, 66, 0.08); }
.data-table tr.highlight:hover { background: rgba(26, 102, 66, 0.12); }
.data-table .text-right { text-align: right; }
.data-table .text-center { text-align: center; }
/* Rankings List */
.rankings {
list-style: none;
counter-reset: ranking;
margin: 24px 0;
}
.rankings li {
counter-increment: ranking;
padding: 16px 20px 16px 60px;
position: relative;
border-bottom: 1px solid var(--border);
}
.rankings li:last-child { border-bottom: none; }
.rankings li::before {
content: counter(ranking);
position: absolute;
left: 16px;
top: 50%;
transform: translateY(-50%);
width: 28px;
height: 28px;
background: var(--primary-green);
color: var(--white);
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
font-family: 'JetBrains Mono', monospace;
font-weight: 600;
font-size: 12px;
}
.rankings li strong { color: var(--text-primary); }
.rankings .value {
font-family: 'JetBrains Mono', monospace;
font-weight: 600;
color: var(--primary-green);
}
/* Insights Grid */
.insights-grid {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 16px;
margin: 24px 0;
}
.insight-card {
background: var(--background-subtle);
border-radius: 8px;
padding: 20px;
}
.insight-card h4 {
font-size: 14px;
margin-bottom: 8px;
color: var(--primary-green);
}
.insight-card p {
font-size: 13px;
color: var(--text-secondary);
margin-bottom: 0;
}
/* Footer */
.report-footer {
margin-top: 48px;
padding-top: 24px;
border-top: 1px solid var(--border);
text-align: center;
}
.report-footer p {
font-size: 12px;
color: var(--text-muted);
margin-bottom: 0;
}
/* Utility Classes */
.positive { color: var(--positive); }
.negative { color: var(--negative); }
.mono { font-family: 'JetBrains Mono', monospace; }
.text-muted { color: var(--text-muted); }
.mb-0 { margin-bottom: 0; }
/* Responsive */
@media (max-width: 768px) {
body { padding: 24px 16px; }
h1 { font-size: 24px; }
.metrics-grid { grid-template-columns: repeat(2, 1fr); }
.insights-grid { grid-template-columns: 1fr; }
.rankings li { padding-left: 50px; }
}
/* Print Styles */
@media print {
body { max-width: none; padding: 0; font-size: 11pt; }
.report-header { page-break-after: avoid; }
h2 { page-break-after: avoid; }
.metrics-grid, .insights-grid, .chart-container, .callout { page-break-inside: avoid; }
.data-table { page-break-inside: auto; }
.data-table tr { page-break-inside: avoid; }
.report-footer { page-break-before: avoid; }
}
</style>
</head>
<body>
<!-- Report Header -->
<header class="report-header">
<div class="report-type">Data Analysis Report</div>
<h1>Report Title Goes Here</h1>
<p class="report-subtitle">Subtitle or description of the report scope</p>
<p class="report-date">Generated: January 15, 2025</p>
</header>
<!-- Executive Summary -->
<section>
<h2>Executive Summary</h2>
<div class="callout">
<p><strong>Key Finding:</strong> Summarize the most important insight here.</p>
</div>
<p>Brief overview of the analysis, methodology, and scope.</p>
</section>
<!-- Metrics Dashboard -->
<section>
<h2>Key Metrics</h2>
<div class="metrics-grid">
<div class="metric-card">
<div class="metric-value positive">1,234</div>
<div class="metric-label">Total Count</div>
<div class="metric-change positive">+12.5% vs prior</div>
</div>
<div class="metric-card">
<div class="metric-value negative">-8.3%</div>
<div class="metric-label">Change Rate</div>
<div class="metric-change negative">Down from -5.2%</div>
</div>
<div class="metric-card">
<div class="metric-value neutral">$45.2K</div>
<div class="metric-label">Average Value</div>
<div class="metric-change positive">+3.1% vs prior</div>
</div>
<div class="metric-card">
<div class="metric-value positive">94.7%</div>
<div class="metric-label">Success Rate</div>
<div class="metric-change positive">+2.3% improvement</div>
</div>
</div>
</section>
<!-- Visualization Section -->
<section>
<h2>Analysis</h2>
<p>Description of the analysis methodology.</p>
<figure class="chart-container">
<img src="data:image/png;base64,..." alt="Chart description">
<figcaption>Figure 1: Chart title and explanation</figcaption>
</figure>
<p>Interpretation of the chart and insights.</p>
</section>
<!-- Data Table Section -->
<section>
<h2>Detailed Breakdown</h2>
<table class="data-table">
<thead>
<tr>
<th>Category</th>
<th>Description</th>
<th class="text-right">Value</th>
<th class="text-right">Change</th>
</tr>
</thead>
<tbody>
<tr class="highlight">
<td><strong>Top Item</strong></td>
<td>Description</td>
<td class="text-right mono">1,234</td>
<td class="text-right positive">+15.2%</td>
</tr>
<tr>
<td>Second Item</td>
<td>Description</td>
<td class="text-right mono">987</td>
<td class="text-right positive">+8.7%</td>
</tr>
</tbody>
</table>
</section>
<!-- Rankings Section -->
<section>
<h2>Top Rankings</h2>
<ol class="rankings">
<li><strong>First Place</strong> - Description with <span class="value">1,234</span> units</li>
<li><strong>Second Place</strong> - Description with <span class="value">987</span> units</li>
<li><strong>Third Place</strong> - Description with <span class="value">654</span> units</li>
</ol>
</section>
<!-- Insights Grid -->
<section>
<h2>Key Insights</h2>
<div class="insights-grid">
<div class="insight-card">
<h4>Insight 1</h4>
<p>Description of the first key insight.</p>
</div>
<div class="insight-card">
<h4>Insight 2</h4>
<p>Description of the second key insight.</p>
</div>
</div>
</section>
<!-- Conclusion -->
<section>
<h2>Conclusion</h2>
<p>Summary of findings and implications.</p>
<div class="callout">
<p><strong>Recommendation:</strong> Based on this analysis, we recommend [action].</p>
</div>
</section>
<!-- Footer -->
<footer class="report-footer">
<p>© 2025 TextQL. All rights reserved.</p>
</footer>
</body>
</html>