Bootstrap 5 Alerts
Alerts
Bootstrap 5 provides an easy way to create predefined alert messages:
[フレーム]Alerts are created with the .alert class, followed by one of the
contextual classes .alert-success, .alert-info, .alert-warning,
.alert-danger, .alert-primary, .alert-secondary, .alert-light or .alert-dark:
Example
<div class="alert alert-success">
<strong>Success!</strong> Indicates a successful or positive action.
</div>
Try it Yourself »
<strong>Success!</strong> Indicates a successful or positive action.
</div>
Alert Links
Add the .alert-link class to any links inside the alert box to create "matching colored links":
Example
<div class="alert alert-success">
<strong>Success!</strong> You should <a href="#" class="alert-link">read this message</a>.
</div>
Try it Yourself »
<strong>Success!</strong> You should <a href="#" class="alert-link">read this message</a>.
</div>
Closing Alerts
Success! This alert box could indicate a successful or positive action.
To close the alert message, add a .alert-dismissible
class to the alert container. Then add class="btn-close" and data-bs-dismiss="alert"
to a link or a button element (when you click on this the alert box will
disappear).
Example
<div class="alert alert-success alert-dismissible">
<button type="button" class="btn-close" data-bs-dismiss="alert"></button>
<strong>Success!</strong> This alert box could indicate a successful or positive action.
</div>
Try it Yourself »
<button type="button" class="btn-close" data-bs-dismiss="alert"></button>
<strong>Success!</strong> This alert box could indicate a successful or positive action.
</div>
Animated Alerts
The .fade and .show classes adds a fading effect when
closing the alert message: