Update map.css
Update map.css

tweek width of .map-buttons for case when 3 buttons need to be displayed next to each other.
janschulte/js-sensorweb-client,52North/js-sensorweb-client,EHJ-52n/js-sensorweb-client,janschulte/js-sensorweb-client,EHJ-52n/js-sensorweb-client,52North/js-sensorweb-client