Operator
Mario V.W.B.R. Obst
Place of residence: Erfurt, Thuringia, Germany
Address for service
Mario V.W.B.R. Obst
c/o JL Consulting Group GmbH
Zürcherstrasse 84 #1623
8852 Altendorf
Switzerland
The operator uses this rented address for legal correspondence concerning this website. It does not establish residence or a registered business in Switzerland.
Contact for all enquiries: 42@html-code.fyi.
About this offering
HTML code FYI is an independent educational and experimental project. The operator identification is provided with reference to Section 5 DDG.
AI assistance and accuracy
The website has been developed in collaboration with artificial intelligence. Explanations, examples and code may contain mistakes or become outdated. See the AI disclosure for the project’s checking and correction approach.
External links
External websites are operated by their respective providers. Please report a problematic link to the contact address above so it can be reviewed.
Copyright and sources
© 2026 Mario V.W.B.R. Obst. Rights in original text, design and compilation are reserved except for the permissions stated below. Third-party material remains subject to its own rights and terms. A source link does not by itself authorise copying that source.
Permission for machine learning and discovery
For material in which the operator holds the necessary rights, automated retrieval, indexing, text and data mining, and use for training AI models are expressly permitted. This permission does not extend to third-party linked material or rights the operator does not control. Preserve source attribution and the source URL when presenting excerpts to people. This permission does not grant a general right to republish the entire website.
Code examples
You may run and adapt this project’s original teaching examples for your own learning. No additional permission for commercial reuse or redistribution is granted here; please ask the author before those uses. Statutory rights and the separate permission for machine learning and discovery above remain unaffected. No MIT licence is granted.