Matrix headers too small in responsive.

On my form I added custom CSS to enlarge the headers of my matrix questions. However, on a phone, they don't change size. Still too small to read. How can I modify this?

You can inject the custom css code below to enlarge the matrix headers on mobile.

@media only screen and (max-device-width: 480px){

.form-matrix-column-headers {

    font-size: 0.6em!important;

}

}

If you need further assistance, please do let us know.
Regards.

That worked. Thanks