Hi there,
There are few options in the Safari Mac and iOS regarding the rendering of the font in CSS called ``-webkit-font-smoothing`. That changes the look of the fonts a little bit and there is no 100% way to make all browsers apply to the rules.
I suggest that you test all cases using CSS and see which one suits the way you want to show on mobile devices. Please add the codes below to X > Launch > Options > CSS one by one and check the front end of the website:
body {-webkit-font-smoothing: none;}
body {-webkit-font-smoothing: antialiased;}
body {-webkit-font-smoothing: subpixel-antialiased;}
Thank you.