How i can change text color of GTranslate Widget

The color of my website header is black, and the default text color of GTranslate is also black, making it not visible on the header.

I attempted to change the text color using custom CSS, but it didn’t work.

Here is the CSS code I used

.gt_container–dnfx6j a.glink span {
color: white;
}

The page I need help with: [log in to see the link]