Description

The buttons used for skipping between stories are not visible on Safari browsers. This includes macOS and iPadOS Safari.

Reproduction Steps

1. Navigate to https://000615502.deployed.codepen.website with a browser that isn't Safari and open a story from the carousel. The skip buttons are correctly shown on either side of the story.
   

2. Navigate to https://000615502.deployed.codepen.website with Safari. The buttons are not visible. They are functional and can be clicked, they are just invisible
   

Relevant Logs

No response

Browser(s) Affected

Safari

OS(s) Affected

No response

Device(s) Affected

No response

AMP Version Affected

No response