<wbr> Safe Line Break
<wbr> creates safe line break. The wbr element is new to HTML5. It indicates where the browser could insert a line break to wrap content. The browser makes the decision.
<!DOCTYPE HTML>
<html>
<head>
<title>Example</title>
</head>
<body>
This is a long long text.
<wbr>Looooooooooooooooooooooooooooooooooooooooooooooooooong<wbr> text.
</body>
</html>