code: function () {
          var args = arguments,
              argNum = args.length, i;
  
          for ( i = 0; i < argNum; ++i ) {
              var delIdx = this._propertyIndexOf( args[i] );
  
              if ( delIdx > -1 ) {
                  this._b_props.splice( delIdx, 1 );
                  this._f_props.splice( delIdx, 1 );
              }
          }
  
          this._propLength = this._f_props.length;
          return this;
      }
docs: 스타일속성들 삭제<br>
  'z-index' 표기법 사용
  @param	{String...}		propName
  @return	this