I set width for my map to 0
I created addition CSS file with style
Code:
.my_responsive_map {
height: 50vh !important;
}
upload to server
then add my class to my map and set load my CSS file
after that my map is responsive - width 100% and height 50% of visible.
You can check my demo, just resize browser window
joomla.zhuk.cc/index.php/zhosmmap-main/o...n/om-main-simple-map
You can see that height changing too