position property
Implementation
@override
CSSPositionType get position => _position ?? DEFAULT_POSITION_TYPE;
      
      set
      position
      (CSSPositionType? value) 
      
    
    
    
Implementation
set position(CSSPositionType? value) {
  if (_position == value) return;
  _position = value;
  // Position effect the stacking context.
  _markNeedsSort();
  _markParentNeedsLayout(force: true);
  // Position change may affect transformed display
  // https://www.w3.org/TR/css-display-3/#transformations
  // The position changes of the node may affect the whitespace of the nextSibling and previousSibling text node so prev and next node require layout.
  renderBoxModel?.markAdjacentRenderParagraphNeedsLayout();
}