Is it possible in the browser to focus on two components?

Question

JavaScript

There is a form component in which you can edit the Textarea text, and there is a Select form (drop-down list). The application is written using react+redux. When an element is selected in the drop-down list, this element is inserted into the text editing form. The question is, is it possible to not lose focus from the text editing form when clicking on the drop-down list? Now the focus disappears and reappears after selection. If you can recommend articles on this topic, I would be grateful :) (I only found about operations with one form, and not when there are several of them)