data.MEASUREMENTTYPOGRAPHYSIGNED 
                  
                     Measurements used for typographical features. Unlike data.MEASUREMENTTYPOGRAPHYSIGNED,
                        both
                        positive and negative values are allowed.
                     
                     
                        Used by
                        
                           
                              Attribute Classes These class-based attributes use data.MEASUREMENTTYPOGRAPHYSIGNED 
                              
                                 att.typography /@letterspacing Indicates letter spacing (aka tracking) in analogy to the CSS letter-spacing
                                          property.  
                            
                         
                      
                     
                        Declaration
                        
                           
                                 <macroSpec ident= "data.MEASUREMENTTYPOGRAPHYSIGNED"  module= "MEI"  type= "dt" > 
                                    
                                    <desc xml:lang= "en" > Measurements used for typographical features. Unlike data.MEASUREMENTTYPOGRAPHYSIGNED,
                                       both
                                       positive and negative values are allowed.</desc> 
                                    
                                    <content> 
                                       
                                       <rng:choice> 
                                          
                                          
                                          
                                          
                                          </rng:choice> </content> </macroSpec>