src/vs/base/browser/fastDomNode.ts/FastDomNode/constructor
class FastDomNode:	constructor(domNode: T) {
		this.domNode = domNode;
		this._maxWidth = -1;
		this._width = -1;
		this._height = -1;
		this._top = -1;
		this._left = -1;
		this._bottom = -1;
		this._right = -1;
		this._fontFamily = '';
		this._fontWeight = '';
		this._fontSize = -1;
		this._fontFeatureSettings = '';
		this._lineHeight = -1;
		this._letterSpacing = -100;
		this._className = '';
		this._display = '';
		this._position = '';
		this._visibility = '';
		this._backgroundColor = '';
		this._layerHint = false;
		this._contain = 'none';
		this._boxShadow = '';
	}