.new-content-header h1 {
    font-size: 18px;
}
.new-content-header h1 span {
    font-size: 20px;
}
@media (min-width: 768px) {
    .new-content-header h1 {
        font-size: 24px;
        line-height: 1;
    }
    .new-content-header h1 span {
        font-size: 38px;
    }    
}