@ DocumentNode (location: (1:0)-(2:0))
└── children: (2 items)
    ├── @ HTMLElementNode (location: (1:0)-(1:61))
    │   ├── open_tag:
    │   │   └── @ HTMLOpenTagNode (location: (1:0)-(1:56))
    │   │       ├── tag_opening: "<" (location: (1:0)-(1:1))
    │   │       ├── tag_name: "h1" (location: (1:1)-(1:3))
    │   │       ├── tag_closing: ">" (location: (1:55)-(1:56))
    │   │       ├── children: (1 item)
    │   │       │   └── @ HTMLAttributeNode (location: (1:4)-(1:55))
    │   │       │       ├── 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)-(1:55))
    │   │       │               ├── open_quote: """ (location: (1:10)-(1:11))
    │   │       │               ├── children: (1 item)
    │   │       │               │   └── @ ERBIfNode (location: (1:11)-(1:54))
    │   │       │               │       ├── tag_opening: "<%" (location: (1:11)-(1:13))
    │   │       │               │       ├── content: " if bold? " (location: (1:13)-(1:23))
    │   │       │               │       ├── tag_closing: "%>" (location: (1:23)-(1:25))
    │   │       │               │       ├── statements: (1 item)
    │   │       │               │       │   └── @ LiteralNode (location: (1:25)-(1:29))
    │   │       │               │       │       └── content: "bold"
    │   │       │               │       │
    │   │       │               │       ├── subsequent:
    │   │       │               │       │   └── @ ERBElseNode (location: (1:29)-(1:45))
    │   │       │               │       │       ├── tag_opening: "<%" (location: (1:29)-(1:31))
    │   │       │               │       │       ├── content: " else " (location: (1:31)-(1:37))
    │   │       │               │       │       ├── tag_closing: "%>" (location: (1:37)-(1:39))
    │   │       │               │       │       └── statements: (1 item)
    │   │       │               │       │           └── @ LiteralNode (location: (1:39)-(1:45))
    │   │       │               │       │               └── content: "normal"
    │   │       │               │       │
    │   │       │               │       │
    │   │       │               │       └── end_node:
    │   │       │               │           └── @ ERBEndNode (location: (1:45)-(1:54))
    │   │       │               │               ├── tag_opening: "<%" (location: (1:45)-(1:47))
    │   │       │               │               ├── content: " end " (location: (1:47)-(1:52))
    │   │       │               │               └── tag_closing: "%>" (location: (1:52)-(1:54))
    │   │       │               │
    │   │       │               │
    │   │       │               ├── close_quote: """ (location: (1:54)-(1:55))
    │   │       │               └── quoted: true
    │   │       │
    │   │       │
    │   │       └── is_void: false
    │   │
    │   ├── tag_name: "h1" (location: (1:1)-(1:3))
    │   ├── body: []
    │   ├── close_tag:
    │   │   └── @ HTMLCloseTagNode (location: (1:56)-(1:61))
    │   │       ├── tag_opening: "</" (location: (1:56)-(1:58))
    │   │       ├── tag_name: "h1" (location: (1:58)-(1:60))
    │   │       └── tag_closing: ">" (location: (1:60)-(1:61))
    │   │
    │   └── is_void: false
    │
    └── @ HTMLTextNode (location: (1:61)-(2:0))
        └── content: "\n"