Indicate danger with red outlined Bootstrap 4 Button

Use the btn-outline-danger class in Bootsrap 4 to indicate danger with red outlined button.

The following is an example to set a button that indicates danger with red outline −

<button type="button" class="btn btn-outline-danger">

The class is added using the btn and btn-outline-danger class in Bootstrap −

class="btn btn-outline-danger”

Let us see an example to implement the btn-outline-danger class −


Live Demo

<!DOCTYPE html>
<html lang="en">
    <title>Bootstrap Example</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="">
    <script src=""></script>
    <script src=""></script>
  <p>Animals are in danger. To know what, you need to click below:</p>
  <button type="button" class="btn btn-outline-danger">Danger</button>