Alerts
Provide contextual feedback messages for typical user actions with the handful of available and flexible alert messages.
example :
Success! This is an alert
Info This is another alert
Warning You are warned this is an alert
Danger This is a dangerous alert
<div class="alert alert-success" role="alert">
<strong>Success!</strong> This is an alert
</div>
<div class="alert alert-info" role="alert">
<strong>Info</strong> This is another alert
</div>
<div class="alert alert-warning" role="alert">
<strong>Warning</strong> You are warned this is an alert
</div>
<div class="alert alert-danger" role="alert">
<strong>Danger</strong> This is a dangerous alert
</div>
For native Bootstrap form controls Bootstrap Documentation