Buttons
Angular Bootstrap 5 Buttons component
Use MDB custom button styles for actions in forms, dialogs, and more with support for multiple sizes, states, and more.
Basic example
Use default button style to indicate an action or link within your website.
<button type="button" class="btn btn-primary" mdbRipple>Button</button>
Disable text wrapping
If you don’t want the button text to wrap, you can add the
.text-nowrap
class to the button. In Sass, you can set
$btn-white-space: nowrap
to disable text wrapping for each button.
Hierarchy
Buttons, as one of the key UI elements, must have their own hierarchy. This means that the user should be able to easily identify which button is the most important (primary button), which is less important (secondary button) and which presents completely additional information (tertiary button).
Elements with strong, filled backgrounds and shadows attract attention the most, which is why button primary is built in this way.
A delicate background without shadows is less engaging, so it is well suited for button secondary.
The lack of background and shadow makes the element the least visible. These features characterize the button tertiary.
Note: Button tertiary may require additional margins. Without extra margins, the button edge will be flush with adjacent elements (which is sometimes the desired result). If you need margin - simply add margin utility classes like mx-2
.
<button type="button" class="btn btn-primary" mdbRipple>Primary</button>
<button type="button" class="btn btn-secondary" mdbRipple>Secondary</button>
<button type="button" class="btn btn-tertiary" mdbRipple>Tertiary</button>
Contextual
MDB includes several predefined button styles, each serving its own semantic purpose.
<button type="button" class="btn btn-success" mdbRipple>Success</button>
<button type="button" class="btn btn-danger" mdbRipple>Danger</button>
<button type="button" class="btn btn-warning" mdbRipple>Warning</button>
<button type="button" class="btn btn-info" mdbRipple>Info</button>
Conveying meaning to assistive technologies:
Using color to add meaning only provides a visual indication, which will not be conveyed to
users of assistive technologies – such as screen readers. Ensure that information denoted by
the color is either obvious from the content itself (e.g. the visible text), or is included
through alternative means, such as additional text hidden with the
.visually-hidden
class.
Neutral
Neutral buttons provide additional light and dark colors.
<button type="button" class="btn btn-light" mdbRipple rippleColor="dark">Light</button>
<button type="button" class="btn btn-dark" mdbRipple>Dark</button>
Link
Link button is similar to the tertiary button (and often is used as a substitute). The difference is, that the link button has a background on hover and also has a default padding.
<button type="button" class="btn btn-link" mdbRipple rippleColor="dark">Link</button>
Outline
In need of a button, but not the hefty background colors they bring? Replace the default
modifier classes with the .btn-outline-*
ones to remove all background images and
colors on any button.
In the outline buttons, we recommend adding
data-mdb-ripple-color="dark"
to change the color of the
ripple effect. The default light color of the ripple (applied automatically
to every button) may not be well visible in the case of light and outline buttons.
To learn more about the ripple effect and all the available options have a look at Ripple Docs.
<button type="button" class="btn btn-outline-primary" mdbRipple rippleColor="dark">Primary</button>
<button type="button" class="btn btn-outline-secondary" mdbRipple rippleColor="dark">Secondary</button>
<button type="button" class="btn btn-outline-success" mdbRipple rippleColor="dark">Success</button>
<button type="button" class="btn btn-outline-danger" mdbRipple rippleColor="dark">Danger</button>
<button type="button" class="btn btn-outline-warning" mdbRipple rippleColor="dark">Warning</button>
<button type="button" class="btn btn-outline-info" mdbRipple rippleColor="dark">Info</button>
<button type="button" class="btn btn-outline-light" mdbRipple rippleColor="dark">Light</button>
<button type="button" class="btn btn-outline-dark" mdbRipple rippleColor="dark">Dark</button>
Some of the button styles use a relatively light foreground color, and should only be used on a dark background in order to have sufficient contrast.
Rounded
Add .btn-rounded
class to make the button rounded.
<button type="button" class="btn btn-primary btn-rounded" mdbRipple>Primary</button>
<button type="button" class="btn btn-secondary btn-rounded" mdbRipple>Secondary</button>
<button type="button" class="btn btn-success btn-rounded" mdbRipple>Success</button>
<button type="button" class="btn btn-danger btn-rounded" mdbRipple>Danger</button>
<button type="button" class="btn btn-warning btn-rounded" mdbRipple>Warning</button>
<button type="button" class="btn btn-info btn-rounded" mdbRipple>Info</button>
<button type="button" class="btn btn-light btn-rounded" mdbRipple>Light</button>
<button type="button" class="btn btn-dark btn-rounded" mdbRipple>Dark</button>
Rounded outline
You can use .btn-outline-*
and .btn-rounded
together to make the
button outline and rounded at the same time.
<button type="button" class="btn btn-outline-primary btn-rounded" mdbRipple rippleColor="dark">Primary</button>
<button type="button" class="btn btn-outline-secondary btn-rounded" mdbRipple rippleColor="dark">Secondary</button>
<button type="button" class="btn btn-outline-success btn-rounded" mdbRipple rippleColor="dark">Success</button>
<button type="button" class="btn btn-outline-danger btn-rounded" mdbRipple rippleColor="dark">Danger</button>
<button type="button" class="btn btn-outline-warning btn-rounded" mdbRipple rippleColor="dark">Warning</button>
<button type="button" class="btn btn-outline-info btn-rounded" mdbRipple rippleColor="dark">Info</button>
<button type="button" class="btn btn-outline-light btn-rounded" mdbRipple rippleColor="dark">Light</button>
<button type="button" class="btn btn-outline-dark btn-rounded" mdbRipple rippleColor="dark">Dark</button>
Floating
Use .btn-floating
class to make a circle button.
To make it works properly you have to put an icon inside. The text will not fit in. You can find hundreds of available icons in our icons docs.
<button type="button" class="btn btn-primary btn-floating" mdbRipple>
<i class="fas fa-download"></i>
</button>
You can apply almost all the same classes and attributes to the floating buttons as to the regular buttons - colors, ripples, sizes, outline, etc.
<button type="button" class="btn btn-primary btn-lg btn-floating" mdbRipple>
<i class="fas fa-gem"></i>
</button>
<button type="button" class="btn btn-outline-success btn-floating" mdbRipple rippleColor="dark">
<i class="fas fa-star"></i>
</button>
<button type="button" class="btn btn-danger btn-floating" mdbRipple>
<i class="fas fa-magic"></i>
</button>
<button type="button" class="btn btn-dark btn-floating" mdbRipple>
<i class="fab fa-apple"></i>
</button>
Text
You don't need to use only an icon. You can add text to the button. Remember to add some
spacing classes (for example .me-2
) to provide a proper space between icon and
text.
<a class="btn text-white" style="background-color: #55acee;" href="#!" role="button" mdbRipple>
<i class="fab fa-twitter me-2"></i>
Twitter
</a>
Only icon
By removing button classes and replacing background-color
with
color
you can create minimalistic, clickable icons.
<!-- Facebook -->
<a style="color: #3b5998;" href="#!" role="button">
<i class="fab fa-facebook-f fa-lg"></i>
</a>
<!-- Twitter -->
<a style="color: #55acee;" href="#!" role="button">
<i class="fab fa-twitter fa-lg"></i>
</a>
<!-- Google -->
<a style="color: #dd4b39;" href="#!" role="button">
<i class="fab fa-google fa-lg"></i>
</a>
<!-- Instagram -->
<a style="color: #ac2bac;" href="#!" role="button">
<i class="fab fa-instagram fa-lg"></i>
</a>
Notifications
By using a badge you can create a button with a notification to provide a counter.
<a class="btn text-white" style="background-color: #3b5998;" href="#!" role="button" mdbRipple>
<i class="fab fa-facebook-f"></i>
<span class="badge bg-danger ms-2">8</span>
</a>
Sizes
Fancy larger or smaller buttons? Add .btn-lg
or .btn-sm
for
additional sizes.
<button type="button" class="btn btn-primary btn-sm" mdbRipple>Button</button>
<button type="button" class="btn btn-primary" mdbRipple>Button</button>
<button type="button" class="btn btn-primary btn-lg" mdbRipple>Button</button>
Active state
Add .active
class to make the button look pressed.
<a href="#" class="btn btn-primary btn-lg active" role="button" aria-pressed="true">Primary link</a>
<a href="#" class="btn btn-secondary btn-lg active" role="button" aria-pressed="true">Link</a>
Disabled state
Make buttons look inactive by adding the disabled
boolean attribute to any
<button>
element. Disabled buttons have
pointer-events: none
applied to, preventing hover and active states from
triggering.
<button type="button" class="btn btn-primary btn-lg" disabled>Primary button</button>
<button type="button" class="btn btn-secondary btn-lg" disabled>Button</button>
Disabled buttons using the <a>
element behave a bit different:
-
<a>
s don’t support thedisabled
attribute, so you must add the.disabled
class to make it visually appear disabled. -
Some future-friendly styles are included to disable all
pointer-events
on anchor buttons. In browsers which support that property, you won’t see the disabled cursor at all. -
Disabled buttons using
<a>
should include thearia-disabled="true"
attribute to indicate the state of the element to assistive technologies. -
Disabled buttons using
<a>
should not include thehref
attribute.
<a class="btn btn-primary btn-lg disabled" role="button" aria-disabled="true">Primary link</a>
<a class="btn btn-secondary btn-lg disabled" role="button" aria-disabled="true">Link</a>
Link functionality caveat:
To cover cases where you have to keep the href
attribute on a disabled link,
the .disabled
class uses pointer-events: none
to try to disable
the link functionality of <a>
s. Note that this CSS property is not yet
standardized for HTML, but all modern browsers support it. In addition, even in browsers
that do support pointer-events: none
, keyboard navigation remains unaffected,
meaning that sighted keyboard users and users of assistive technologies will still be able
to activate these links. So to be safe, in addition to aria-disabled="true"
,
also include a tabindex="-1"
attribute on these links to prevent them from
receiving keyboard focus, and use custom JavaScript to disable their functionality
altogether.
<a href="#" class="btn btn-primary btn-lg disabled" tabindex="-1" role="button" aria-disabled="true">Primary link</a>
<a href="#" class="btn btn-secondary btn-lg disabled" tabindex="-1" role="button" aria-disabled="true">Link</a>
Toggle states
Add .active
class and aria-pressed
attribute to toggle button active
state.
<button
type="button"
[ngClass]="{ 'active': isActive }"
class="btn btn-primary"
autocomplete="off"
(click)="toggleActiveState()"
mdbRipple
>
Toggle button
</button>
<button type="button" class="btn btn-primary" disabled autocomplete="off">
Disabled toggle button
</button>
import { Component } from '@angular/core';
@Component({
selector: 'app-button',
templateUrl: './button.component.html',
styleUrls: ['./button.component.scss'],
})
export class ButtonComponent {
isActive = false;
toggleActiveState(): void {
this.isActive = !this.isActive;
}
}
<a href="#" class="btn btn-primary" role="button" [ngClass]="{ 'active': isActive }" aria-pressed="isActive"
(click)="toggleActiveState()">Toggle link</a>
<a href="#" class="btn btn-primary disabled" role="button">Disabled toggle link</a>
import { Component } from '@angular/core';
@Component({
selector: 'app-button',
templateUrl: './button.component.html',
styleUrls: ['./button.component.scss'],
})
export class ButtonComponent {
isActive = false;
toggleActiveState(): void {
this.isActive = !this.isActive;
}
}
Buttons - API
Import
import { MdbRippleModule } from 'mdb-angular-ui-kit/ripple';
…
@NgModule ({
...
imports: [MdbRippleModule],
...
})
CSS variables
As part of MDB’s evolving CSS variables approach, buttons now use local CSS variables on
.btn
for enhanced real-time customization. Values for the CSS variables are set
via Sass, so Sass customization is still supported, too.
Button's CSS variables are in different classes which belong to this component. To make it easier to use them, you can find below all of the used CSS variables.
// .btn
--#{$prefix}btn-padding-x: #{$btn-padding-x};
--#{$prefix}btn-padding-top: #{$btn-padding-top};
--#{$prefix}btn-padding-bottom: #{$btn-padding-bottom};
--#{$prefix}btn-font-family: #{$btn-font-family};
@include rfs($btn-font-size, --#{$prefix}btn-font-size);
--#{$prefix}btn-font-weight: #{$btn-font-weight};
--#{$prefix}btn-line-height: #{$btn-line-height};
--#{$prefix}btn-color: #{$body-color};
--#{$prefix}btn-bg: transparent;
--#{$prefix}btn-border-width: 0;
--#{$prefix}btn-border-color: none;
--#{$prefix}btn-border-radius: #{$btn-border-radius};
--#{$prefix}btn-hover-border-color: transparent;
--#{$prefix}btn-box-shadow: #{$btn-box-shadow};
--#{$prefix}btn-hover-box-shadow: #{$btn-hover-box-shadow};
--#{$prefix}btn-focus-box-shadow: #{$btn-focus-box-shadow};
--#{$prefix}btn-active-box-shadow: #{$btn-active-box-shadow};
--#{$prefix}btn-disabled-opacity: #{$btn-disabled-opacity};
// [class*='btn-outline-']
--#{$prefix}btn-padding-top: #{$btn-outline-padding-top};
--#{$prefix}btn-padding-bottom: #{$btn-outline-padding-bottom};
--#{$prefix}btn-padding-x: #{$btn-outline-padding-x};
--#{$prefix}btn-border-width: #{$btn-outline-border-width};
--#{$prefix}btn-line-height: #{$btn-line-height};
// .btn-link
--#{$prefix}btn-font-weight: #{$font-weight-medium};
--#{$prefix}btn-color: #{$btn-link-color};
--#{$prefix}btn-bg: transparent;
--#{$prefix}btn-border-color: transparent;
--#{$prefix}btn-hover-color: #{$btn-link-hover-color};
--#{$prefix}btn-hover-bg: #{$btn-link-hover-bg};
--#{$prefix}btn-hover-border-color: transparent;
--#{$prefix}btn-focus-color: #{$btn-link-focus-color};
--#{$prefix}btn-active-color: #{$btn-link-active-color};
--#{$prefix}btn-active-border-color: transparent;
--#{$prefix}btn-disabled-color: #{$btn-link-disabled-color};
--#{$prefix}btn-disabled-border-color: transparent;
--#{$prefix}btn-box-shadow: none;
--#{$prefix}btn-focus-shadow-rgb: #{to-rgb(mix(color-contrast($primary), $primary, 15%))};
// .btn-tertiary
--#{$prefix}btn-font-weight: #{$font-weight-medium};
--#{$prefix}btn-color: #{$btn-link-color};
--#{$prefix}btn-hover-color: #{$btn-link-hover-color};
--#{$prefix}btn-hover-bg: transparent;
--#{$prefix}btn-focus-color: #{$btn-link-focus-color};
--#{$prefix}btn-active-color: #{$btn-link-active-color};
--#{$prefix}btn-disabled-color: #{$btn-link-disabled-color};
--#{$prefix}btn-box-shadow: none;
// .btn-rounded
--#{$prefix}btn-border-radius: #{$btn-rounded-border-radius};
// .btn-floating,
// [class*='btn-outline-'].btn-floating
--#{$prefix}btn-border-radius: #{$btn-floating-border-radius};
// .btn-floating
--#{$prefix}btn-width: #{$btn-floating-width};
--#{$prefix}btn-height: #{$btn-floating-height};
--#{$prefix}btn-icon-width: #{$btn-floating-icon-width};
--#{$prefix}btn-icon-line-height: #{$btn-floating-icon-line-height};
--#{$prefix}btn-width-lg: #{$btn-floating-width-lg};
--#{$prefix}btn-height-lg: #{$btn-floating-height-lg};
--#{$prefix}btn-icon-width-lg: #{$btn-floating-icon-width-lg};
--#{$prefix}btn-icon-line-height-lg: #{$btn-floating-icon-line-height-lg};
--#{$prefix}btn-width-sm: #{$btn-floating-width-sm};
--#{$prefix}btn-height-sm: #{$btn-floating-height-sm};
--#{$prefix}btn-icon-width-sm: #{$btn-floating-icon-width-sm};
--#{$prefix}btn-icon-line-height-sm: #{$btn-floating-icon-line-height-sm};
// [class*='btn-outline-'].btn-floating
--#{$prefix}btn-icon-width: #{$btn-outline-floating-icon-width};
--#{$prefix}btn-icon-width-lg: #{$btn-outline-floating-icon-width-lg};
--#{$prefix}btn-icon-width-sm: #{$btn-outline-floating-icon-width-sm};
--#{$prefix}btn-icon-line-height: #{$btn-outline-floating-icon-line-height};
--#{$prefix}btn-icon-line-height-lg: #{$btn-outline-floating-icon-line-height-lg};
--#{$prefix}btn-icon-line-height-sm: #{$btn-outline-floating-icon-line-height-sm};
// .fixed-action-btn
--#{$prefix}btn-right: #{$fixed-action-btn-right};
--#{$prefix}btn-bottom: #{$fixed-action-btn-bottom};
--#{$prefix}btn-zindex: #{$fixed-action-button-zindex};
--#{$prefix}btn-padding-top: #{$fixed-action-btn-padding-top};
--#{$prefix}btn-padding-bottom: #{$fixed-action-btn-padding-bottom};
--#{$prefix}btn-padding-x: #{$fixed-action-btn-padding-x};
--#{$prefix}btn-margin-bottom: #{$fixed-action-btn-li-margin-bottom};
// .btn-block
--#{$prefix}btn-margin-top: #{$btn-block-margin-top};
SCSS variables
$btn-padding-top: 0.625rem;
$btn-padding-bottom: 0.5rem;
$btn-padding-x: 1.5rem;
$btn-font-size: 0.75rem;
$btn-line-height: 1.5;
$btn-font-size: $input-btn-font-size;
$btn-white-space: null;
$btn-padding-top-lg: 0.75rem;
$btn-padding-bottom-lg: 0.6875rem;
$btn-padding-x-lg: 1.6875rem;
$btn-font-size-lg: 0.875rem;
$btn-line-height-lg: 1.6;
$btn-padding-top-sm: 0.375rem;
$btn-padding-bottom-sm: 0.3125rem;
$btn-padding-x-sm: 1rem;
$btn-font-size-sm: 0.75rem;
$btn-line-height-sm: 1.5;
$btn-border-width: $border-width-alternate;
$btn-font-weight: $font-weight-medium;
$btn-box-shadow: 0 4px 9px -4px rgba($black, 0.35);
$btn-hover-box-shadow: 0 8px 9px -4px rgba($black, 0.15), 0 4px 18px 0 rgba($black, 0.1);
$btn-focus-box-shadow: $btn-hover-box-shadow;
$btn-active-box-shadow: $btn-focus-box-shadow;
$btn-focus-width: $input-btn-focus-width;
$btn-disabled-opacity: 0.65;
$btn-link-color: $link-color;
$btn-link-hover-color: $link-hover-color;
$btn-link-focus-color: $link-focus-color;
$btn-link-active-color: $link-active-color;
$btn-link-disabled-color: $gray-500;
$btn-link-hover-bg: hsl(0, 0%, 96%);
$btn-border-radius: $border-radius;
$btn-transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out,
border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
$btn-hover-bg-shade-amount: 5%;
$btn-focus-bg-shade-amount: 5%;
$btn-active-bg-shade-amount: 10%;
$btn-contextual-box-shadow: 0 4px 9px -4px;
$btn-contextual-box-shadow-state-first-part: 0 8px 9px -4px;
$btn-contextual-box-shadow-state-second-part: 0 4px 18px 0;
$btn-outline-padding-top: 0.5rem;
$btn-outline-padding-bottom: 0.375rem;
$btn-outline-padding-x: 1.375rem;
$btn-outline-border-width: $border-width-alternate;
$btn-outline-line-height: 1.5;
$btn-outline-padding-top-lg: 0.625rem;
$btn-outline-padding-bottom-lg: 0.5625rem;
$btn-outline-padding-x-lg: 1.5625rem;
$btn-outline-font-size-lg: 0.875rem;
$btn-outline-line-height-lg: 1.6;
$btn-outline-padding-top-sm: 0.25rem;
$btn-outline-padding-bottom-sm: 0.1875rem;
$btn-outline-padding-x-sm: 0.875rem;
$btn-outline-font-size-sm: 0.75rem;
$btn-outline-line-height-sm: 1.5;
$btn-rounded-border-radius: 10rem;
$btn-floating-border-radius: 50%;
$btn-floating-width: 2.3125rem;
$btn-floating-height: 2.3125rem;
$btn-floating-icon-width: 2.3125rem;
$btn-floating-width-lg: 2.8125rem;
$btn-floating-height-lg: 2.8125rem;
$btn-floating-icon-width-lg: 2.8125rem;
$btn-floating-width-sm: 1.8125rem;
$btn-floating-height-sm: 1.8125rem;
$btn-floating-icon-width-sm: 1.8125rem;
$btn-outline-floating-icon-width: 2.0625rem;
$btn-outline-floating-icon-width-lg: 2.5625rem;
$btn-outline-floating-icon-width-sm: 1.5625rem;
$btn-floating-icon-line-height: 2.3125rem;
$btn-floating-icon-line-height-lg: 2.8125rem;
$btn-floating-icon-line-height-sm: 1.8125rem;
$btn-outline-floating-icon-line-height: 2.0625rem;
$btn-outline-floating-icon-line-height-lg: 2.5625rem;
$btn-outline-floating-icon-line-height-sm: 1.5625rem;
$fixed-action-btn-right: 2.1875rem;
$fixed-action-btn-bottom: 2.1875rem;
$fixed-action-btn-padding-top: 0.9375rem;
$fixed-action-btn-padding-bottom: 1.25rem;
$fixed-action-btn-padding-x: 1.25rem;
$fixed-action-btn-li-margin-bottom: 1.5rem;
$btn-block-margin-top: 0.5rem;