The innerHTML of Element for JS represents the markup of the element's contents.
element.innerHTML [ = value ]
attachShadow
classList
className
closest
getAttribute
getAttributeNames
getAttributeNS
hasAttribute
hasAttributeNS
hasAttributes
id
insertAdjacentHTML
localName
matches
namespaceURI
outerHTML
prefix
removeAttribute
removeAttributeNS
setAttribute
setAttributeNS
shadowRoot
slot
tagName
toggleAttribute
World Wide Web Consortium (W3C)
