Is there a way to reduce the bleed or margin size of image blocks?

Site URL: https://society-particular.squarespace.com/config/

Hi,

Could someone help me with making the margin around an image blocks smaller? I have a website with lots of images. I would like to make the gap between image blocks smaller. I cant achieve it through the built-in functions. Could someone help me with this customization? Thanks~ 

Hi, Add to Design > Custom CSS

/* Image block margin */
.image-block {
	padding: 5px !important;
}

Thanks a lot Tuanphan!!! It makes the perfect looking i want! Many Thanks👍