center icon in wordpress dropdown field

I want help to center the icon of the dropdown field in the forms, I have tried several plugins but it always appears in the upper corner

I have some plugin and through css and could not change its position or identify that element

https://preview.redd.it/yybrh3lxn6da1.png?width=542&format=png&auto=webp&v=enabled&s=854f0ba8ef9b7703f62340b4bab15e9fae7feb8a

 

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