I put it in override.css at site http://www.silviequisova.cz/, but this not work. In Joomla 3.7.x administrator-templates J 3.7.x I cannot see any options to enable/disable override.css. Maybe is it problem Joomla 3.7?
Hello, great. Template admin features now work. Template override work too, but your code (#gkTop {top: 0 !important;}) not show menu at page load (only past scroll down) Client want to see menu all time.