How can I use <style> to set a linetype

What is the URL of the documentation?

https://plantuml.com/style and https://plantuml.com/skinparam

- *Note:*  This URL includes the web page and the section of the documentation.

What can be improved?

• An example on how to convert skinparam linetype ortho into a <style> CSS style

Additional context

The skinparam site mentions that skinparam is deprecated but there is no known alternative documented on how to implement it in a CSS style

This is true for ortho, polyline and splines (last one is a default setting)

I tried a couple of things, but none seem to work:

<style>
root {
    linetype ortho
}
objectDiagram {
    linetype ortho
    line {
        linetype ortho
    }
}

</style>