text: 
  class UnderlineBlot extends Inline { }
  UnderlineBlot.blotName = 'underline';
  UnderlineBlot.tagName = 'u';
  //Quill.register(UnderlineBlot);
  
  
  class StrikeBlot extends Inline { }
  StrikeBlot.blotName = 'strike';
  StrikeBlot.tagName = 'strike';
  //Quill.register(StrikeBlot);
  
  class BoldBlot extends Inline { }
  BoldBlot.blotName = 'bold';
  BoldBlot.tagName = 'strong';
  //Quill.register(BoldBlot);
  
  
  class SupBlot extends Inline { }
  SupBlot.blotName = 'sup';
  SupBlot.tagName = 'sup';
  Quill.register(SupBlot);
  
  class H1Blot extends Block { }
  H1Blot.blotName = 'h1';
  H1Blot.tagName = 'h1';
  Quill.register(H1Blot);
  
  class H2Blot extends Block { }
  H2Blot.blotName = 'h2';
  H2Blot.tagName = 'h2';
  Quill.register(H2Blot);
  
  
  class ItalicBlot extends Inline {
  };
  ItalicBlot.blotName = 'em';
  ItalicBlot.tagName = 'em';