@media screen and (max-width: 640px) {
    .t-text_md {
        font-size: 13px;
        line-height: 1.4;
    }
}
@media screen and (min-width: 1199px) {
.t-text_md {
    font-size: 16px; !important
    line-height: 1.45;
}
}