What face should Silverlight face?

I think the current Silverlight combination with HTML is not good.
Silverlight can be applied only in multimedia fields, such as network CAD, network GIS, network TV, network image processing, and workflow.
But I also hope that we can use SL to write the business.
Because writing business with HTML + JS is a very tiring and costly task.
However, when using SL, we found that it was not very good to combine with HTML.
We hope to use SL elements like ordinary HTML elements, at least like Asp.net controls. With the default configuration or conventions, you can write SL.
At the same time, SL can be easily run independently, offline, quasi-offline, data synchronization and automatic update.
If the application cost is too high, I will not be able to use it in large quantities.
SL should be seen as an HTML element.