This method stores plain html string.

def add_table(self, dataframe, isStyled = False):
        """This method stores plain html string."""

        if isStyled :
            table_string = dataframe.render()
        else :
            table_string = dataframe.style.render()
            
        table_string = table_string.replace("\n", "").replace("<table", """<table class = "table table-sm table-hover" """).replace("<thead>", """<thead class="thead-inverse">""")
        self.table = table_string