It appears when dropdown with suggestion texts opens the input is hovered.
Setting focus, active, hover styles doesn't help. It looks like it's out of DOM.
How can I remove the border and the background of an input text in Edge?
UPDATE
If there is no css solution, can anybody answer me with a link to how-it-works-article and/or provide me a javascript workaround (I want it to be like in google.com search input).