Kirby markdown
to the button with these classes.uk-button .uk-button-default
.uk-button .uk-button-primary
.uk-button .uk-button-secondary
.uk.button .uk-button-danger
.uk-button .uk-button-text
.uk-button .uk-button-default .uk-button-large
.uk-button .uk-button-default .uk-button-small
.uk-align-left
.uk-align-right
.uk-align-center
.uk-width-1-1
.uk-width-1-2
.uk-width-1-3
to .uk-width-2-3
.uk-width-1-4
to .uk-width-3-4
.uk-width-1-5
to .uk-width-4-5
.uk-width-1-6
to .uk-width-5-6
.uk-height-1-1
.uk-height-small
.uk-height-max-small
.uk-height-medium
.uk-height-max-medium
.uk-height-large
.uk-height-max-large