Website not Mobile Friendly

Your logo.

If you’re not using a Child Theme, and if the theme doesn’t have a designated section of the dashboard for CSS modifications then install this Custom CSS Manager plugin http://ww.wp.xz.cn/plugins/custom-css-manager-plugin

Then use its “CSS Code” section of the dashboard to hold your CSS modifications:

Alternatively use your Child Theme style.css file to hold your CSS modifications:

@media screen and (max-width: 420px) {

    #branding img {
        width: 100%;
    }

}