Enable the Share Bar Only on Mobile Devices

Use CSS code below to enable share bar only on mobile devices

@media only screen and (min-width: 568px) {
    #mashfbar-header {
        display:none;
    }
}

If this doesn't work, try this code to force the rule;

@media only screen and (min-width: 568px) {
    #mashfbar-header {
        display:none !important;
    }
}