Bootstrap W3school Code Example


Example 1: jquery for bootstrap 4

<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>

Example 2: bootstrap

<!-- CSS --> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/css/bootstrap.min.css" integrity="sha384-TX8t27EcRE3e/ihU7zmQxVncDAy5uIKz4rEkgIXeMed4M0jlfIDPvg6uqKI2xXr2" crossorigin="anonymous">  <!-- jQuery and JS bundle w/ Popper.js --> <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.5.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ho+j7jyWK8fNQe+A12Hb8AhRq26LrZ/JpcUGGOn+Y7RsweNrtN/tE3MoK7ZeZDyx" crossorigin="anonymous"></script>

Example 3: bootstrap

<!doctype html> <html lang="en">   <head>     <!-- Required meta tags -->     <meta charset="utf-8">     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">      <!-- Bootstrap CSS -->     <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous">      <title>Hello, world!</title>   </head>   <body>     <h1>Hello, world!</h1>      <!-- Optional JavaScript -->     <!-- jQuery first, then Popper.js, then Bootstrap JS -->     <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>     <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>     <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js" integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI" crossorigin="anonymous"></script>   </body> </html>

Example 4: bootstrap 4

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">

Example 5: bootstrap

<nav class="navbar navbar-expand-lg navbar-light bg-light">   <a class="navbar-brand" href="#">Navbar</a>   <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">     <span class="navbar-toggler-icon"></span>   </button>    <div class="collapse navbar-collapse" id="navbarSupportedContent">     <ul class="navbar-nav mr-auto">       <li class="nav-item active">         <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>       </li>       <li class="nav-item">         <a class="nav-link" href="#">Link</a>       </li>       <li class="nav-item dropdown">         <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">           Dropdown         </a>         <div class="dropdown-menu" aria-labelledby="navbarDropdown">           <a class="dropdown-item" href="#">Action</a>           <a class="dropdown-item" href="#">Another action</a>           <div class="dropdown-divider"></div>           <a class="dropdown-item" href="#">Something else here</a>         </div>       </li>       <li class="nav-item">         <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>       </li>     </ul>     <form class="form-inline my-2 my-lg-0">       <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">       <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>     </form>   </div> </nav>

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