@media only screen and (max-width: 767px) {
    .hero-heading h3 span,
    h3.hero-heading span,
    .hero-heading span {
        font-size: 48px !important;
    }

    .business-should-know-heading h3 span,
    h3.business-should-know-heading span,
    .business-should-know-heading span {
        font-size: 42px !important;
    }

    .make-business-work-heading h3 span,
    h3.make-business-work-heading span,
    .make-business-work-heading span {
        font-size: 42px !important;
    }
    
    .getting-stuck-heading h3 span,
h3.getting-stuck-heading span,
.getting-stuck-heading span {
    font-size: 42px !important;
}
}