What heading to use in a Bootstrap alert [closed]

1. Which class is used to close the alert messages?
2. Which classes are to be applied to have alerts use animation while closing?
3. How do I center a Bootstrap alert?

Which class is used to close the alert messages?

To close the alert message, add a . alert-dismissible class to the alert container. Then add and data-dismiss="alert" to a link or a button element (when you click on this the alert box will disappear).

Which classes are to be applied to have alerts use animation while closing?

fade class and the . show class to create an animated alert that gives a fading effect while closing the alert.

How do I center a Bootstrap alert?

Use center-block instead of text-center with alert if you want to center align the whole alert.