Thank you for your reply,
I understand that, but shouldn’t this be done automatically? either via CSS or using the built-in cropping functionality from WP itself?
Check out this link, the images uploaded are not of the same height, yet they’re all thumbnailed equally https://doy.tech/
Yes the slider image will crop automatically as of our code but you have to upload the image max size to 666 x 810 and 1024 x 608 for next slider. If you upload the smaller image size than same actual size will be display into the slider and the image size of the slides will be different.