Dynamic feature image doesnt change

Updated the CSS, sorry for the typo.
https://generatepress.com/forums/topic/dynamic-feature-image-doesnt-change/#post-2085275

Sorry but still doesnt work

There's an error in your previous CSS, you are missing a } where I indicated in the below screenshot:
https://www.screencast.com/t/JxxUpoCP0eY

thank you Ying! Last question. The feature picture has white space above and next to it. How can i get it the same as the example blog that i sent you. Do i need to change the size of my pictures that i upload?

Select the container block which holds the image, set its top margin to -34px, left margin to -40px, right margin to -40pxas well.

These are the values you set in customizer > layout > container.

https://www.screencast.com/t/flar16qXNOnP