Resizing List-style-image Links

I am trying to find out how to resize a list-style-image link on codepen. Here is my code. I tried googling this but all I could find was how to resize images that were inputted into the HTML and not stricly from a link in CSS. Thank you!

codepen username coe9257

I cannot post links yet!



ul {
  list-style-image:   url("I cannot post Links yet");