@ DocumentNode (location: (1:0)-(1:52))
└── children: (1 item)
    └── @ HTMLElementNode (location: (1:0)-(1:52))
        ├── open_tag:
        │   └── @ HTMLOpenTagNode (location: (1:0)-(1:47))
        │       ├── tag_opening: "<" (location: (1:0)-(1:1))
        │       ├── tag_name: "h1" (location: (1:1)-(1:3))
        │       ├── tag_closing: ">" (location: (1:46)-(1:47))
        │       ├── children: (1 item)
        │       │   └── @ HTMLAttributeNode (location: (1:4)-(1:46))
        │       │       ├── name:
        │       │       │   └── @ HTMLAttributeNameNode (location: (1:4)-(1:9))
        │       │       │       └── name: "class" (location: (1:4)-(1:9))
        │       │       │
        │       │       ├── equals: "=" (location: (1:9)-(1:10))
        │       │       └── value:
        │       │           └── @ HTMLAttributeValueNode (location: (1:10)-(1:46))
        │       │               ├── open_quote: """ (location: (1:10)-(1:11))
        │       │               ├── children: (3 items)
        │       │               │   ├── @ LiteralNode (location: (1:11)-(1:22))
        │       │               │   │   └── content: "text-white "
        │       │               │   │
        │       │               │   ├── @ ERBContentNode (location: (1:22)-(1:39))
        │       │               │   │   ├── tag_opening: "<%=" (location: (1:22)-(1:25))
        │       │               │   │   ├── content: " "bg-black" " (location: (1:25)-(1:37))
        │       │               │   │   ├── tag_closing: "%>" (location: (1:37)-(1:39))
        │       │               │   │   ├── parsed: true
        │       │               │   │   └── valid: true
        │       │               │   │
        │       │               │   └── @ LiteralNode (location: (1:39)-(1:45))
        │       │               │       └── content: " title"
        │       │               │
        │       │               ├── close_quote: """ (location: (1:45)-(1:46))
        │       │               └── quoted: true
        │       │
        │       │
        │       └── is_void: false
        │
        ├── tag_name: "h1" (location: (1:1)-(1:3))
        ├── body: []
        ├── close_tag:
        │   └── @ HTMLCloseTagNode (location: (1:47)-(1:52))
        │       ├── tag_opening: "</" (location: (1:47)-(1:49))
        │       ├── tag_name: "h1" (location: (1:49)-(1:51))
        │       └── tag_closing: ">" (location: (1:51)-(1:52))
        │
        └── is_void: false