First iteration of the 'Hvar er brenna?' site

This site lists all new year's eve bonfires in the Reykjavik area
and uses HTML5 geolocation to find the closest one.
Replace h1 small .show-for-large-up with a media query trick

.show-for-large-up inherits the display of the parent which is h1
so this causes it to be displayed as a block which does not look
good on large screens. Instead we use a media query and add the
h1 small text (which was hidden on smaller devices) but we tell
the smaller devices to display it as a block (which looks ok).