Trying to get overlapping logo between footer and section above it

I am trying to get this image/logo to overlap into the next section above it. I have successfully moved it up, but now it disappears behind the section rather than sitting on top of it. I am using this code to move it up. Now I just need to figure out how to make it sit on top of the section. Thank you!

#block-yui_3_17_2_1_1712000396722_116491 {
    position: relative;
  top: -30px;
    
}

You need to set z-index of sections contain your block, higher > z-index of next section

If you share link to page in screenshot, we can help easier

@tuanphan here is a link to my site: Thank you! 

https://grasshopper-moose-taz5.squarespace.com/

PW: forum

@tuanphan Thank you! Worked