Alerts are available for any length of
text, as well as an optional dismiss button. For proper styling, use one
of the four required contextual classes (e.g., .alert-success).
For inline
dismissal, use the alerts jQuery plugin.
<div class="alert alert-primary" role="alert">
a simple primary alert
</div>
<div class="alert alert-success" role="alert">
a simple success alert
</div>
<div class="alert alert-info" role="alert">
a simple info alert
</div>
<div class="alert alert-warning" role="alert">
a simple warning alert
</div>
<div class="alert alert-danger mb-0" role="alert">
a simple danger alert
</div>
You can see this in action with a live demo:
<div class="alert alert-success alert-dismissible fade show" role="alert">
<button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
<strong>Well done!</strong> You successfully read this important alert message.
</div>
<div class="alert alert-info alert-dismissible fade show" role="alert">
<button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
<strong>Heads up!</strong> This alert needs your attention, but it's not super important.
</div>
<div class="alert alert-warning alert-dismissible fade show" role="alert">
<button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
<strong>Warning!</strong> Better check yourself, you're not looking too good.
</div>
<div class="alert alert-danger alert-dismissible fade show mb-0" role="alert">
<button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
<strong>Oh snap!</strong> Change a few things up and try submitting again.
</div>
Sass variables
// Sass Variables
$alert-padding-y: $spacer;
$alert-padding-x: $spacer;
$alert-margin-bottom: 1rem;
$alert-border-radius: $border-radius;
$alert-link-font-weight: $font-weight-bold;
$alert-border-width: $border-width;
$alert-bg-scale: -80%;
$alert-border-scale: -70%;
$alert-color-scale: 40%;
$alert-dismissible-padding-r: $alert-padding-x * 3; // 3x covers width of x plus default padding on either side
Variant mixins
// Variant mixin
@mixin alert-variant($background, $border, $color) {
color: $color;
@include gradient-bg($background);
border-color: $border;
.alert-link {
color: shade-color($color, 20%);
}
}