token - html
points - WebDevist
file types - .zip .html .htm
max filesize - 1,024kb
description - files no larger than 1mb
All resources (images, stylesheets, et cetera) used in the entry must be the author's own work (and, in the case of OHB
s, created during the entry period). Hotlinking to files on the Internet is prohibited, since it wastes bandwidth from the host, is prone to breaking, and usually breaks one of the other rules anyway.
Want to learn HTML? w3schools
might be a good place to start. Once you get a grasp of it, there is also MDN Web Docs
for an extensive documentation and references about it and related web technologies.