I want to create a homescreen with a big map. I tried to change the height by css but it doesnt work. The height of the map always remains fixed at 500px. I suspect that the problem is that I cannot change the leaflet output via css.
This should work, but this will likely impact map size also on other pages of your site, if you have maps elsewhere, unless you have other ways to address only the map on the homepage. Maybe others will have more elegant solutions.