The Grid CSS mods working in Chrome, but not MS Edge

I am using Wordpress with the Astra Theme and Codecanyon “The Grid” plugin. I am modifying the “Kampala” Skin to change the look of the Social Media link in the upper RH corner (see screenshot).

So far, I have (using CSS) managed to change the size of the triangle, and the color of the arrow (from white to red). These mods work in Chrome and Edge.

However, when I change the color of the triangle it only shows up correctly in Chrome, not MS Edge (where my change to the color is ignored). Again, see the screenshot.

Is this a browser consistency issue? Is there some level at which I can the change so that it works in all browsers?

I’d appreciate any suggestions or comments… thanks.

Hi,

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Thanks!