When you add a strong Tag within a paragraph, JavaFx WebView is not making the text strong, its the same as the text around it. Refer to attached image for its detail.. This is only a problem when the following font is specified as this css:
font-family: 'Source Sans Pro', 'Helvetica', sans-serif;
Chrome has no trouble with displaying the Strong font here.
This jsfiddle reproduces the issue:
This jsfiddle is working, but has no font-family set