Last updated: April 15, 2026
By accessing or using Gridlock Holmes at gridlock-holmes.com ("the Site"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, you must not use the Site.
We may update these Terms from time to time. Continued use of the Site after changes are posted constitutes your acceptance of the revised Terms. We encourage you to review this page periodically.
Gridlock Holmes is a free educational platform that provides:
We may add, modify, or remove features at any time without prior notice.
Gridlock Holmes uses your browser's localStorage to save learning progress, layout configurations, and optional student login credentials. This data is stored locally on your device and is not transmitted to our servers.
If you use the student login feature on a shared computer, please be aware that:
You are responsible for maintaining the security of any credentials you create and for all activity that occurs under your student profile.
All educational content on Gridlock Holmes is provided for general informational and learning purposes only. While we make reasonable efforts to ensure accuracy:
We are not a registered educational institution. Our content supplements, but does not replace, formal education or professional training.
All content on the Site â including text, graphics, logos, images, lesson materials, code examples, the CSS Grid generator tool, and the site design â is owned by Gridlock Holmes or its licensors and is protected by copyright, trademark, and other intellectual property laws.
You may:
You may not:
Certain features may be offered as paid upgrades ("Pro Features"). Payments for Pro Features are processed by Gumroad, a third-party payment processor. By purchasing Pro Features:
Prices are displayed in the currency shown at the point of sale and may be subject to applicable taxes. We reserve the right to change pricing at any time; changes will not affect existing purchases.
You agree not to use the Site to:
The Site may contain links to third-party websites and uses the following third-party services:
We are not responsible for the content, privacy practices, or availability of third-party services. Your use of third-party services is governed by their respective terms and policies.
We strive to keep the Site accessible, but we do not guarantee uninterrupted availability. The Site may be temporarily unavailable due to maintenance, updates, or circumstances beyond our control.
We reserve the right to modify, suspend, or discontinue any part of the Site at any time, including lesson content, the generator tool, or Pro Features, with or without notice.
To the fullest extent permitted by law:
Nothing in these Terms excludes or limits liability for death or personal injury caused by negligence, fraud or fraudulent misrepresentation, or any other liability that cannot be excluded or limited by English law.
You agree to indemnify and hold harmless Gridlock Holmes, its owner, and any affiliates from any claims, losses, damages, liabilities, and expenses (including legal fees) arising from your use of the Site, your violation of these Terms, or your violation of any rights of a third party.
Gridlock Holmes is designed to be accessible to learners of all ages, including students in educational settings. However:
If you are a parent or guardian and believe your child has provided personal information to us, please contact us at jon.ellisdon@gridlock-holmes.com so we can take appropriate action.
These Terms are governed by and construed in accordance with the laws of England and Wales. Any disputes arising from or in connection with these Terms or your use of the Site shall be subject to the exclusive jurisdiction of the courts of England and Wales.
If you are a consumer, you may also be entitled to bring a claim in the courts of the country where you reside.
If any provision of these Terms is found to be invalid or unenforceable by a court of competent jurisdiction, the remaining provisions shall continue in full force and effect.
If you have any questions about these Terms, please contact us:
Email: jon.ellisdon@gridlock-holmes.com
Website: gridlock-holmes.com
© 2026 Gridlock Holmes. All rights reserved.