.posttitle_cat2 {
        width: calc(100% - 140px);
    }
    .posttitle_cat2_1 {
        min-width: 220px;
    }
    @media screen and (min-width: 640px) {
        .posttitle_cat2 {
            width: calc(100% - 220px);
        }
        .posttitle_cat2_1 {
            min-width: 390px;
        }
    }