New Page Title Background & Font not working on Mobile

Hi

I have added a background and changed font to the Page Title area and all works on a desktop but on a mobile the background and font has not changed and I can't find the relevant css.

This is the rule I have changed

.page-title-pattern {
    background-image: url("images/pattern.png");
    background-repeat: repeat;
    background-attachment: fixed;
}

And Inline font

.page-title-content h1, .page-title-content .h1 {
    padding: 0;
    margin: 0;
    line-height: 1;
    font-weight: var(--cnvs-page-title-font-weight);
    color: #fdfdfd;
    font-family: Galonia;
    font-size: var(--cnvs-page-title-font-size);
    letter-spacing: var(--cnvs-page-title-spacing);
}

Thank you in advance