How to create mail id in bootstrap 4

To create a mail ID input field in Bootstrap 4, you can use the form-control class along with the type attribute set to email. Here's an example:

<input type="email" class="form-control" id="email" placeholder="Enter your email address">

This will create a basic email input field with a placeholder text "Enter your email address".

You can also add some additional classes to customize the appearance and behavior of the input field. For example:

Here's an example with some additional classes:

<input type="email" class="form-control form-control-lg form-control-feedback" id="email" placeholder="Enter your email address">

You can also use the form-group class to wrap the input field and add some additional styling and functionality. For example:

<div class="form-group">
  <label for="email">Email address:</label>
  <input type="email" class="form-control" id="email" placeholder="Enter your email address">
</div>

This will create a form group with a label and an input field, and the input field will be styled with the default Bootstrap 4 styles.

You can also use the input-group class to add some additional functionality to the input field, such as a button or a dropdown menu. For example:

<div class="input-group">
  <input type="email" class="form-control" id="email" placeholder="Enter your email address">
  <div class="input-group-append">
    <button class="btn btn-primary" type="button">Send</button>
  </div>
</div>

This will create an input group with an input field and a button, and the button will be styled with the default Bootstrap 4 styles.