Hello
To edit your logo and slogan font size on smaller screen sizes you can add the following to the Custom CSS field of your templates parameters...
/* #Mobile (Landscape)
================================================== */
@media only screen and ( max-width: 767px ) {
h1.logo-text a {
font-size:30px;
}
p.site-slogan {
font-size:10px;
}}
/* #Mobile (Portrait)
================================================== */
@media only screen and (max-width: 440px) {
h1.logo-text a {
font-size:20px;
}
p.site-slogan {
font-size:8px;
}}
You can edit the above to your own taste. It is hopefully self explanatory however if you have any questions please feel free to ask.
CiarĂ¡n