After rendering with customWidgetBuilder, there was a line break

[mcy-ma]

HtmlWidget( ''' Inline block level label content (mandatory no line breaks) Line level label content (automatic no line breaks) ''', customWidgetBuilder: (context) { print('element=============$context'); final document = parse(context.innerHtml);

   final tag = context.localName;
   final attributes = context.attributes;

   if (tag == 'span') {
     return
       Text(
         'Text content',
         softWrap: false,
       );
   }

   return null;
 },

);

[daohoangson]

If you want to keep the new widget on the same line, it should be possible to wrap your Text widget inside a InlineCustomWidget.