The specific number of spaces in the indentation is unimportant as long as parallel elements have the same left justification and the hierarchically nested elements are indented further . The specific number of spaces in the indentation is unimportant as long as parallel elements have the same left orientation and the hierarchically nested elements are further indented . The specific number of spaces in the indentation is unimportant as long as parallel elements have the same left alignment and the hierarchically indented elements are further nested .