@media screen and (max-width: 800px) {
    .page-sub-title {
        font-size: 3rem;
        text-align: left;
    }
    .ptop .thumb img {
        width: 100%;
        margin: 0;
    }
    .ptop .thumb .bg {
        display: none;
    }
    .ptop.row {
        margin-left: -2rem;
        margin-right: -2rem;
        padding-left: 1rem;
        padding-right: 1rem;
    }
    .ptop.row .col-xs-6 {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    .ptop.row .col-xs-6:first-child {
        width: 40%;
    }
    .ptop.row .col-xs-6:last-child {
        width: 60%;
    }
}

@media screen and (max-width: 500px) {
    .ptop.row .col-xs-6 {
        width: 100% !important;
    }
    .ptop.row .col-xs-6:first-child {
        margin-bottom: 2rem;
    }
    .ptop .thumb img {
        width: 50%;
    }
    .ptop p {
        font-size: 1.8rem;
    }
}