@media screen and (max-width: 834px)    {
    .sub_page span,
    .sub_page b,
    .sub_page strong,
    .sub_page em,
    .sub_page small,
    .sub_page a,
    .sub_page sup,
    .sub_page sub   {
        font-size: inherit;
        line-height: inherit;
    }

}