Hello! I posted before about changing the gallery slider image sizes.

I used this code:

.single-portfolio-fullwidth-slider .owl-carousel .owl-item img, .single-portfolio-fullwidth-slider .owl-carousel .owl-item img.size-all, .single-portfolio-fullwidth-slider .owl-carousel .owl-item img.size-arnold-standard-thumb-medium, .owl-carousel .owl-item img.single-fullwidth-slider-carousel-img { max-width: 100vw!important; height: 50vh!important;}
.single-portfolio-fullwidth-slider .owl-carousel, .single-fullwidth-slider-carousel-img, .owl-carousel .owl-item img.single-fullwidth-slider-carousel-img, .single-portfolio-fullwidth-slider .owl-prev, .single-portfolio-fullwidth-slider .owl-carousel .owl-controls .owl-nav .owl-next, .single-portfolio-fullwidth-slider .owl-carousel .owl-item img, .single-portfolio-fullwidth-slider .owl-carousel .owl-item img.size-all, .single-portfolio-fullwidth-slider .owl-carousel .owl-item img.size-arnold-standard-thumb-medium {height: 50vh!important;}

However, when I deleted it from ‘Additional CSS’ and ‘css style sheet’ in child theme, the image sizes didn’t change back. Do you know how I can change the gallery slider back to default image sizes?