.wrapper {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}
.txt {
    display: inline-block;
    text-align: left;
    padding-right: 20px;
    padding-left: 20px;
    line-height: 1.8;
}
@media (max-width: 1199px) {
    html {
        font-size: 15px;
    }
    .wrapper {
        max-width: 600px;
    }
}
@media (max-width: 991px) {
    html {
        font-size: 15px;
    }
    .wrapper {
        max-width: 450px;
    }
}