https://kotlinlang.org/api/core/1.1/kotlin-stdlib/org.w3c.dom/-element/inner-h-t-m-l.html
innerhtml
https://domscripting.com/blog/display/35
The new version of Firefox supports innerHTML, even in correctly served XHTML documents.
dom scriptinginnerhtmldilemma
https://www.w3schools.com/jsreF/prop_html_innerhtml.asp
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML...
html domelementinnerhtmlproperty