In some cases your theme may force the store locator to use white text on a white background, or any other unreadable color combination. To fix this you can overwrite the current style with custom CSS code.

The code below will try and force the text to be black and the background of the input field and search results to be white.

If you want to use different colors, then copy the HEX color codes ( they have this structure #xxxxxx ) from this site and use them instead.