By the way, code above will influence all the Slideshows that you may want to add to the site. Therefore, add different your own unique class to the each Slideshow addon and use it in the code. For another Slideshows, use a copy of this code but with a unique class.
Example for one Slideshow
@media (min-width: 1921px) {
.your-own-class-1 .sp-slider-outer-stage {
height: 600px !important;
}
}
Example for another one Slideshow
@media (min-width: 1921px) {
.your-own-class-2 .sp-slider-outer-stage {
height: 400px !important;
}
}
.your-own-class-1 for first, .your-own-class-2 for second and ect