Basic Buttons
<!--Default button-->
<button class="btn btn-primary">Primary</button>
<!--Icon button-->
<button class="btn btn-primary btn-icon">
<i class="fas fa-feather-alt">Primary</i>
<span>Primary</span>
</button>
<!--Only icon button-->
<button class="btn btn-primary btn-only-icon">
<i class="fas fa-feather-alt">Primary</i>
</button>
Invert Buttons
<!--Default button-->
<button class="btn btn-invert-brand">Brand</button>
<!--Icon button-->
<button class="btn btn-invert-brand btn-icon">
<i class="fas fa-skull">Primary</i>
<span>Brand</span>
</button>
<!--Only icon button-->
<button class="btn btn-invert-brand btn-only-icon">
<i class="fas fa-skull">Brand</i>
</button>
Buttons Group
<!--Default button group-->
<div class="btn-group" role="group" aria-label="Basic example">
<button type="button" class="btn btn-primary">Left</button>
<button type="button" class="btn btn-primary">Center</button>
<button type="button" class="btn btn-primary">Right</button>
</div>
<!--Outline button group-->
<div class="btn-group" role="group" aria-label="Basic example">
<button type="button" class="btn btn-outline-brand">Left</button>
<button type="button" class="btn btn-outline-brand">Center</button>
<button type="button" class="btn btn-outline-brand">Right</button>
</div>
<!--Invert button group-->
<div class="btn-group" role="group" aria-label="Basic example">
<button type="button" class="btn btn-invert-info">Left</button>
<button type="button" class="btn btn-invert-info">Center</button>
<button type="button" class="btn btn-invert-info">Right</button>
</div>
Button Icon Group
<!--Default button icon group-->
<div class="btn-group" role="group" aria-label="Basic example">
<button type="button" class="btn btn-primary btn-only-icon"><i class="fas fa-feather-alt"></i></button>
<button type="button" class="btn btn-primary btn-only-icon"><i class="fas fa-microphone"></i></button>
<button type="button" class="btn btn-primary btn-only-icon"><i class="fas fa-info-circle"></i></button>
</div>
<!--Outline button icon group-->
<div class="btn-group" role="group" aria-label="Basic example">
<button type="button" class="btn btn-outline-brand btn-only-icon"><i class="fas fa-feather-alt"></i></button>
<button type="button" class="btn btn-outline-brand btn-only-icon"><i class="fas fa-microphone"></i></button>
<button type="button" class="btn btn-outline-brand btn-only-icon"><i class="fas fa-info-circle"></i></button>
</div>
<!--Invert button icon group-->
<div class="btn-group" role="group" aria-label="Basic example">
<button type="button" class="btn btn-invert-info btn-only-icon"><i class="fas fa-feather-alt"></i></button>
<button type="button" class="btn btn-invert-info btn-only-icon"><i class="fas fa-microphone"></i></button>
<button type="button" class="btn btn-invert-info btn-only-icon"><i class="fas fa-info-circle"></i></button>
</div>
Button Group Sizing
Just adding.btn-group-sm, .btn-group-lg
you can get small and large button
<!--Default button icon group-->
<div class="btn-group btn-group-sm" role="group" aria-label="Basic example">
<button type="button" class="btn btn-primary btn-only-icon"><i class="fas fa-feather-alt"></i></button>
<button type="button" class="btn btn-primary btn-only-icon"><i class="fas fa-microphone"></i></button>
<button type="button" class="btn btn-primary btn-only-icon"><i class="fas fa-info-circle"></i></button>
</div>
<!--Invert button icon group-->
<div class="btn-group btn-group-lg" role="group" aria-label="Basic example">
<button type="button" class="btn btn-invert-info btn-only-icon"><i class="fas fa-feather-alt"></i></button>
<button type="button" class="btn btn-invert-info btn-only-icon"><i class="fas fa-microphone"></i></button>
<button type="button" class="btn btn-invert-info btn-only-icon"><i class="fas fa-info-circle"></i></button>
</div>
<!--Default button group-->
<div class="btn-group btn-group-sm" role="group" aria-label="Basic example">
<button type="button" class="btn btn-primary">Left</button>
<button type="button" class="btn btn-primary">Center</button>
<button type="button" class="btn btn-primary">Right</button>
</div>
<!--Invert button group-->
<div class="btn-group btn-group-lg" role="group" aria-label="Basic example">
<button type="button" class="btn btn-invert-info">Left</button>
<button type="button" class="btn btn-invert-info">Center</button>
<button type="button" class="btn btn-invert-info">Right</button>
</div>
Outline Buttons
<!--Default button-->
<button class="btn btn-outline-brand">Brand</button>
<!--Icon button-->
<button class="btn btn-outline-brand btn-icon">
<i class="fas fa-award">Primary</i>
<span>Brand</span>
</button>
<!--Only icon button-->
<button class="btn btn-outline-brand btn-only-icon">
<i class="fas fa-award">Brand</i>
</button>
Buttons Group Styles
<!--Air button group-->
<div class="btn-group btn-group_air" role="group" aria-label="Basic example">
<button type="button" class="btn btn-primary">Left</button>
<button type="button" class="btn btn-primary">Center</button>
<button type="button" class="btn btn-primary">Right</button>
</div>
<!--Pill button group-->
<div class="btn-group btn-group_pill" role="group" aria-label="Basic example">
<button type="button" class="btn btn-outline-brand">Left</button>
<button type="button" class="btn btn-outline-brand">Center</button>
<button type="button" class="btn btn-outline-brand">Right</button>
</div>
<!--Air + pill button group-->
<div class="btn-group btn-group_air btn-group_pill" role="group" aria-label="Basic example">
<button type="button" class="btn btn-invert-info">Left</button>
<button type="button" class="btn btn-invert-info">Center</button>
<button type="button" class="btn btn-invert-info">Right</button>
</div>
Buttons Sizing
Just adding.btn-sm
you can get small button
<!--Default button-->
<button class="btn btn-brand btn-sm">Brand</button>
<!--Icon button-->
<button class="btn btn-outline-brand btn-sm btn-icon">
<i class="fas fa-award"></i>
<span>Brand</span>
</button>
<!--Only icon button-->
<button class="btn btn-invert-brand btn-sm btn-only-icon">
<i class="fas fa-award">Brand</i>
</button>
.btn-lg
you can get small button
<!--Default button-->
<button class="btn btn-brand btn-lg">Danger</button>
<!--Icon button-->
<button class="btn btn-outline-brand btn-lg btn-icon">
<i class="fas fa-award"></i>
<span>Danger</span>
</button>
<!--Only icon button-->
<button class="btn btn-invert-brand btn-lg btn-only-icon">
<i class="fas fa-award">Brand</i>
</button>
Button with Icon Group
<div class="btn-icon-group">
<button type="button" class="btn btn-danger">Logout</button>
<button type="button" class="btn btn-only-icon"><i class="la la-power-off"></i></button>
</div>
<div class="btn-icon-group btn-icon-group_pill">
<button type="button" class="btn btn-danger">Logout</button>
<button type="button" class="btn btn-only-icon"><i class="la la-power-off"></i></button>
</div>
<div class="btn-icon-group">
<button type="button" class="btn btn-danger btn-air">Logout</button>
<button type="button" class="btn btn-only-icon"><i class="la la-power-off"></i></button>
</div>
<div class="btn-icon-group btn-icon-group_pill">
<button type="button" class="btn btn-danger btn-air">Logout</button>
<button type="button" class="btn btn-only-icon"><i class="la la-power-off"></i></button>
</div>