Custom CSS "Arrows" Disappear

Newbie to Squarespace and Custom CSS so hopefully someone can help me out.

I’m using the Wells template and I’m not a fan of the arrows (next and previous) over top of the image.  I came across this custom css which is suppose to have “next/previous” at the bottom left of the image and it “works” when I’m in the Design>Custom CSS menu but disappears with the template arrows re-appearing once I move around my site and re-appears once I re-enter the Custom CSS menu.  Any help would be greatly appreciated?

 

.sqs-gallery-controls {

   background-color: white;

   padding-top: 25px

}

 

.sqs-gallery-controls .previous, .sqs-gallery-controls .next {

   background-color: transparent;

   margin-top: 0;

padding: 0 !important;

line-height: inherit;

   position: static;

}

 

.sqs-gallery-controls .previous:hover, .sqs-gallery-controls .next:hover {

   background-color: transparent;

}

 

.sqs-gallery-controls .previous::before, .sqs-gallery-controls .next::before {

   color: #2E2E2E;

   width: inherit;

   font-size: 10px;

   font-family: inherit;

}

 

.sqs-gallery-controls .previous::before {

   content: "PREV";

}

 

.sqs-gallery-controls .next::before {

   content: "NEXT";

}

 

.previous::after {

content: "/";

color: #2E2E2E;

margin-left: 5px

}

Can you share link to your site?

Difficult to check with only code

Sorry for the late reply haven't had time to work on this.  

I just set that template with the code as "live" and everything seems to be working correctly.