I have added code for a button to perform modal popup. Bootstrap 4 Modal. You can keep this one for your website as content as well. Bootstrap Modal is the easiest way of creating notification and confirmation popup messages with the addition of few bootstrap classes. To create a large size modal, you have to use the class .modal-lg. Bootstrap is a CSS framework used for designing web pages. 1. Bootstrap Modal is basically a pop-up box that is used to provide information and alert to the user. Bootstrap is used to create modal popup and design HTMl form, include … Back to Tutorial. Send the email to website admin using PHP. This documentation presents the basic options and examples of modals. Popovers are opt-in for performance reasons, so you must initialize them yourself. We will look at example of react bootstrap modal dialog example. Bootstrap has inbuilt modal component. In order to increase or decrease the modal window height and width properties of Bootstrap, you need to get the modal related classes and use desired values either in the