How do I hide or disable the Pop-up Box of text formatting, when I have selected some text?

When I have selected text, a white bar of tools for text formatting pops up. (Sorry I don’t know the official name.)

What is the CSS to turn this off? I prefer to use the keyboard shortcuts, and this popup obscures much of the text around whatever I have selected.

Thanks!

try this

.button-group, .rich-text-editor__selected-text-menu__search {
display: none;
}

Ba-bing! Yes, that is what I was looking for. Thanks very much Kenneth!