Empty sheet ownerNode: null
Empty sheet ownerRule: null
Empty sheet title: null
Empty sheet cssRules is empty: true
Empty sheet is disabled by default: false
cssRules length after insertRule(): 1
cssRules text: * { font-size: 16px; }
rules and cssRules are the same object: true
cssRules length after deleteRule(): 0
Disabled sheet is disabled: true
