@media screen and (max-width: 650px) {

    .f_box_2_sub{
        width: 200px;
    }
    .f_text{
        font-size: 17px;
    }
    .f_copyrgiht{
        text-align: start;
        padding-left: 19px;
        font-size: 11px;
        height: 20px;
        width: calc(100% - 19px) !important;
    }
}
@media screen and (max-width: 560px) {
    .f_box {
        width: 200px;
    }
}
@media screen and (max-width: 440px){
    .f_box_2_sub{
        margin-left: 0;
    }
}