html {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 16px;
}   
@media screen and (min-width: 430px) {
    html {
        font-size: 16px;
    }
}
@media screen and (min-width: 640px) {
    html {
        font-size: 16px;
    }
}
@media screen and (min-width: 768px) {
    html {
        font-size: 16px;
    }
}
@media screen and (min-width: 1024px) {
    html {
        font-size: 16px;
    }
}
@media screen and (min-width: 1900px) {
    html {
        font-size: 16px;
    }
}