borderBoxLogicalHeight property 
    
    
        
  
    
      
  
      double?
      get
      
borderBoxLogicalHeight
      override
     
    
    
  Implementation
  @override
double? get borderBoxLogicalHeight {
  if (paddingBoxLogicalHeight == null) {
    return null;
  }
  return paddingBoxLogicalHeight! + effectiveBorderTopWidth.computedValue + effectiveBorderBottomWidth.computedValue;
}