text: mod.drop = (input, option) => {
      const drop = node => {
          if (mod.dom.trash_bin.contains(node))
              return;
          mod.dom.trash_bin.appendChild(node);
          if ('style' in node)
              node.style.height = '0px';
          else
              console.warn('>>>>', node);
          mod.log('drop', node);
      }
  
      if (kk.is.s(input)) {
          each (document.querySelectorAll(input), drop);
          return;
      }
  
      if (kk.is.NL(input)) {
          each (input, drop);
          return;
      }
  
      if (kk.is.N(input)) {
          drop(input);
      }
  }
  