Unordered List (UL) — 3-Level Nesting

• Level 1 A
  • Level 2 A-1
    • Level 3 A-1-a
    • Level 3 A-1-b
  • Level 2 A-2
• Level 1 B
  • Level 2 B-1
  • Level 2 B-2
    • Level 3 B-2-a
• Level 1 C (no children)

Ordered List (OL) — 3-Level Nesting

1. Level 1 Item 1
   1. Level 2 Item 1.1
      1. Level 3 Item 1.1.1
      2. Level 3 Item 1.1.2
   2. Level 2 Item 1.2
2. Level 1 Item 2
   1. Level 2 Item 2.1
3. Level 1 Item 3 (no children)

Mixed Nesting (OL in UL, UL in OL)

1. Ordered item one
   • Unordered sub-item A
   • Unordered sub-item B
     • Third-level unordered
2. Ordered item two
   • Unordered sub-item C
3. Ordered item three
   1. Ordered sub-item 3-1
   2. Ordered sub-item 3-2

UL containing OL:

• Unordered item one
  1. Ordered sub-item 1
  2. Ordered sub-item 2
• Unordered item two
  1. Ordered sub-item A
     • Even deeper unordered

Loose List (items containing full paragraphs)

• HDI Any-Layer

  High-density interconnect boards allowing direct inter-layer connections up to 10 layers. Used in HPC and 5G infrastructure.

• Rigid-Flex

  Combines FR4 rigid and PI flexible substrates. Widely used in foldable devices and automotive sensor modules.

• FPC (Flexible PCB)

  Pure flexible board down to 30µm line width, 500,000 pcs/month capacity. Ideal for wearables and medical devices.

Lists with Code and Blockquotes

1. Verify environment config:

   php artisan config:cache
   php artisan route:cache
   

2. Check database status:

   Always back up the production database before running migrations to avoid accidental data loss.

3. Run migration:

   php artisan migrate --force
   

4. Clear cache after completion.