Hylia is very similar to HTML, but has a few different concepts.
Hylia files end with ".hy". The following is a basic Hylia syntax.
<hylia>
<element name="head">
<title>Hello Hylia!</title
</element>
<element name="body">
<h1>Hello Hylia!</h1>
</element>
</hylia
In Hylia, your main items are treated as Elements. If something is not inside an element, it will be ignored.
To compile this code, save it to a file and run hylia yourfile.hy index.html
And test it in a browser!