Fixed Layout
    Checks whether fixed layout is implemented properly
    
    This should be a 100px-wide blue square:
    Width is distributed equally between columns of auto size
    
        
            
            
        
    
    
    This should be a 100px-wide blue square:
    Width is distributed equally between columns of auto size (even if they are defined by rows other than the first)
    
        
        
    
    
    This should be a 100px-wide blue square:
    Widths defined on cells that are not the first row are ignored
    
        
        
    
    
    This should be a 100px-wide blue square:
    The table has to grow to contain the widths defined for its columns
    
        
        
    
    
    This should be a 100px-wide blue square:
    The first row is based on the visual order, not the dom order