[SOLVED] change Header H1 for mobile

Hello everybody....How can I make the Tittle H1 smaller on mobile?. The actual side for H1 Tittle for computer and tablet look really nice but i consider that is too big when I try to watch the web on mobile. There is an option to make it Tittle H1 smaller when I use the mobile?... How can I do it?. thank you for your help

Please add this media query css code to your css/custom.css to setup the H1
Video: Time > 2.40

@media (max-width: 468px) {
h1{ font-size: 100%;
}
}

Problem solved.