Modals – Bootstrap


Modals are popups for providing important information before continuing further.

To create such dialogs/pop-ups on the top of current page Bootstrap provides Modal plugin.


<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width"> <link rel="stylesheet" href="" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous"> <!-- jQuery library --> <script src="" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script> <!-- Latest compiled JavaScript --> <script src="" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script> </head> <body> <!-- Button trigger modal --> <button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal"> Launch demo modal </button> <!-- Modal popup--> <div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true"> <div class="modal-dialog" role="document"> <!-- Modal content--> <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">×</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>

Understanding the Attributes and classes used :

  1. data-toggle = "modal" : It opens up the modal.
  2. data-target : It points to the Id of the modal to open up.
  3. data-dismiss="modal" : This causes the popup to close when clicked on close button.
  4. .modal class identifies the contents of <div> as a modal.
  5. .modal-dialog class sets the proper height and width of the dialog.
  6. .modal-content class styles the modal.It contains header,body and footer sections.
  7. .modal-header class denotes the header section of the modal (title and (×) button).
  8. .modal-title class styles the header of the modal with a proper height.
  9. .modal-body class styles the body of the modal(dialog/popup).It can have other markups like <p>,<img>,<video> etc.
  10. .modal-footer class styles the footer of the modal.
  11. .modal-dialog-centered class styles to vertically center the modal.

More Information :

Bootstrap Modal
Bootstrap Modal v3.3
Bootstrap Modal v4.0

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