How to find a dynamic elements using selenium webdriver?

<div id="button" data-testid="widgetButton" class=" chat-closed mobile-size__large">

I have elements with a special character which the Webdriver can't locate.

I'm trying to click on an item, I've tried everything. my last try:

wd.get(urlSubpage);
        wd.findElement(By.cssSelector("[class='widgetLabel']"));