JSAPI 4.x Modal Dialog

[JohnMDye]

What's the best way for me to present a modal dialog to a client once everything has loaded that the user must accept before they can use my app? The closest thing I could find in the JSAPI 4.x was the popup widget but I'm looking for a blocking dialog that requires the user to basically read and accept the disclaimers of the application before it can be used.

[RobertScheitlin__GISP · Accepted solution]

How To Make a Modal Box With CSS and JavaScript 

[JohnMDye]

Thanks Robert Scheitlin, GISP, I was going to use the Calcite-Web one but wondered if there was an Esri JSPAI Widget that could be used for the purpose and I just didn't know about it.

It would be ideal if it there was one so that I could be assured it would adhere to the specified JSAPI theme.

[RobertScheitlin__GISP]

John,

  I don't think that esri will create such low level layout/form elements. That is completely on the individual developer.