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How to create your own animation for Bootstrap 4 Modal?

Misc

bootstrap4 modal

Hello there, today I met a situation where I had to change the animation of a bootstrap 4 modal and figured out this solution. I added a zoom-in animation with a playtime of 1.5 seconds to the modal. Please have a look at it in the demo below.

DEMO

Open demo in a full window – https://demos.webdevpuneet.com/bootstrap4-modal/index.html

HTML

<html>
  <head>
    <meta charset="UTF-8" />
    <title>Bootstrap 4 modal animation change</title>
    <meta name="description" content="The following example creates a thin (10px wide) scrollbar, which has a grey track/bar color and a red handle." />
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
    <script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
    <link rel="stylesheet" href="style.css">
  </head>
  <body>
    <h1 style="margin-bottom:20px;">Bootstrap 4 modal animation change</h1>

    <!-- Button trigger modal -->
    <button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal">
      Launch demo modal
    </button>

    <!-- Modal -->
    <div class="modal fade zoom-in" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
      <div class="modal-dialog modal-dialog-centered" role="document">
        <div class="modal-content">
          <div class="modal-header">
            <h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
            <button type="button" class="close" data-dismiss="modal" aria-label="Close">
              <span aria-hidden="true">&times;</span>
            </button>
          </div>
          <div class="modal-body">
            ...
          </div>
          <div class="modal-footer">
            <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
            <button type="button" class="btn btn-primary">Save changes</button>
          </div>
        </div>
      </div>
    </div>

  </body>
</html>

CSS

body{
  padding:50px;
}

.modal.fade .modal-dialog{
  -webkit-transform: translate(0,0);
  transform: translate(0,0);
}

.zoom-in {
  transform: scale(0)!important;
  opacity: 0;
  -webkit-transition: 1.5s all 0s;
  -moz-transition: 1.5s all 0s;
  -ms-transition: 1.5s all 0s;
  -o-transition: 1.5s all 0s;
  transition: 1.5s all 0s;
  display: block !important;
}

.zoom-in.show {
  opacity: 1;
  transform: scale(1)!important;
  transform:none;
}