Difficulty integrating custom CSS with Bootstrap framework

I attempted to incorporate a custom CSS file with my Bootstrap code, but unfortunately it does not seem to be functioning properly.

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <link rel="stylesheet" href="bootstrap.min.css">
  <link rel="stylesheet" href="index.css">


  <script src="bootstrap.min.js"></script>
  <title>NRRN Concrete Udhyog</title>
</head>

Within this portion of the document, I attempted to utilize my own personalized CSS:

<div class="carousel-inner">
  <div class="carousel-item active">
    <img src="/Images /cover.jpg" id="slide-1-background" class="d-block w-100" alt="slide1">
    <div class="carousel-caption d-none d-md-block">
      <h5>First slide label</h5>
      <p>Some representative placeholder content for the first slide.</p>
    </div>
  </div>

This is the snippet of my CSS code:

#slide-1-background {
  background-color: black !important;
}

Answer №1

If you're looking to customize Bootstrap classes, here's a simple code snippet to get you started.

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">

        <!-- bootstrap css link -->
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
    
        <style>
    
          /* -- Your custom css goes here -- */

          .custom{
          background: #000;
          font:10px 'Helvetica',sans-serif;
          color:white;
          }

        </style>  

  </head>
  
  <body>
    <button type="button" class="btn btn-warning custom">Danger</button>
  </body>

</html>

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