Placeholder 2

import 'package:flutter/material.dart';
import 'package:gap/gap.dart';
import 'package:shimmer/shimmer.dart';

Shimmer.fromColors(
  baseColor: Colors.black26,
  highlightColor: Colors.black54,
  child: Column(
    crossAxisAlignment: CrossAxisAlignment.start,
    children: [
      Container(
        width: 150,
        height: 16,
        decoration: BoxDecoration(
          borderRadius: BorderRadius.circular(4),
          color: Colors.black26,
        ),
      ),
      const Gap(16),
      ...[300, double.infinity, 325, 260].asMap().entries.map((e) {
        return Container(
          width: e.value.toDouble(),
          height: 12,
          margin: EdgeInsets.only(top: e.key == 0 ? 0 : 8),
          decoration: BoxDecoration(
            borderRadius: BorderRadius.circular(4),
            color: Colors.black26,
          ),
        );
      }),
    ],
  ),
),