<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
</head>
<body>

<div class="container">
  <h2>Bootstrap Buttons</h2>
  
  <h5>Button Styles</h5>
  <button type="button" class="btn">Basic Button</button>
  <button type="button" class="btn btn-primary">Primary Button</button>
  <button type="button" class="btn btn-secondary">Secondary Button</button>
  <button type="button" class="btn btn-success">Success Button</button>
  <button type="button" class="btn btn-info">Info Button</button>
  <button type="button" class="btn btn-link">Link Button</button><br><br> 
  
  <h5>Button Outlines</h5>
  <button type="button" class="btn btn-outline-warning">Warning Bordered-Button</button>
  <button type="button" class="btn btn-outline-danger">Danger Bordered-Button</button>
  <button type="button" class="btn btn-outline-dark">Dark Bordered-Button</button>
  <button type="button" class="btn btn-outline-light text-dark">Light Bordered-Button</button><br><br>
  
  <h5>Different Button-Sizes</h5>
  <button type="button" class="btn btn-primary btn-lg">Large Button</button>
  <button type="button" class="btn btn-primary btn-sm">Small Button</button><br><br>
  
  <h5>Full-Width(Block level)Button</h5>
  <button type="button" class="btn btn-primary btn-block">Block-Level Button</button><br>
  
  <h5>Active and Disabled Buttons</h5>
  <button type="button" class="btn btn-secondary active">Active Primary</button>
  <button type="button" class="btn btn-secondary" disabled>Disabled Primary</button><br><br>
  
  <h5>Spinner Buttons</h5>
  <button class="btn btn-success">
    <span class="spinner-border spinner-border-sm"></span> <!--Simple Spinner-->
    Please Wait..
  </button>
  <button class="btn btn-success" disabled>
    <span class="spinner-grow spinner-grow-sm"></span> <!--Grow Spinner-->
    Please Wait..
  </button>
</div>

</body>
</html>

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External JavaScript

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