Primary Style
btn-primary
btn-secondary
btn-success
btn-warning
btn-danger
btn-info
Outline Button Style
btn-outline-primary
btn-outline-secondary
btn-outline-success
btn-outline-warning
btn-outline-danger
btn-outline-info
Border Variation Style
btn-primary radius-0
btn-secondary radius-6
btn-success radius-8
btn-warning radius-16
btn-danger radius-24
btn-info radius-50
Button Hover Outline Style
btn-primary
btn-secondary
btn-success
btn-warning
btn-danger
btn-info
Button Size Variation
btn-extra-large
btn-large
btn-medium
btn-small
btn-very-small