https://github.com/daohoangson/flutter_widget_from_html/issues/706

main.dart

import 'package:flutter/material.dart';
import 'package:flutter_widget_from_html_core/flutter_widget_from_html_core.dart';

const Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData.dark().copyWith(
        scaffoldBackgroundColor: darkBlue,
      ),
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        body: Center(
          child: Padding(
            padding: const EdgeInsets.all(16),
            child: MyWidget(),
          )
        ),
      ),
    );
  }
}

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    const loremIpsum = '''
Lorem <strong>ipsum dolor</strong> sit amet, consectetur adipiscing elit.
Maecenas <span style="color: red">maximus ut</span> nibh gravida feugiat.
Sed <i>congue at</i> lorem vitae vehicula.
Morbi <u>quis turpis</u> iaculis, ultricies arcu in, pharetra nisl.
Vestibulum <strike>congue non</strike> mauris ut tempor.
Praesent libero tellus, interdum non turpis ac, placerat imperdiet sapien.
Sed fermentum lorem quis arcu maximus bibendum.
Ut eu dictum lacus, eu tempus nunc.
Aliquam felis metus, blandit sed leo non, feugiat posuere purus.
Pellentesque placerat ante eget suscipit tincidunt.
Praesent vel porttitor nunc.
Quisque iaculis egestas consectetur.
Sed vehicula dictum eros, in rhoncus erat scelerisque sed.
Nunc sapien elit, molestie et risus nec, interdum pretium velit.
    ''';
    return const HtmlWidget(
      '<div style="max-lines: 3; text-overflow: ellipsis">$loremIpsum</div>',
    );
  }
}