Footer drop shadow

Quote

footer#footer-sections {
box-shadow: 5px 5px 10px black;
}

#footer-sections {
  box-shadow: 5px 5px 10px black;
  position: relative;
  z-index: 2;
}

I've been trying to add a drop shadow to a footer, I've use both the codes above but neither will work. 

https://www.rangerulesllc.com/

Thank you!