btn
: This class is used to create a basic button.
btn-primary
, btn-secondary
, btn-success
, btn-danger
, btn-warning
, btn-info
, and btn-light
: These classes are used to add different colors to the button.
btn-lg
, btn-sm
, and btn-block
: These classes are used to change the size and display of the button. btn-lg
creates a larger button, btn-sm
creates a smaller button, and btn-block creates a block-level button that spans the full width of its parent.
btn-outline-primary
, btn-outline-secondary
, btn-outline-success
, btn-outline-danger
, btn-outline-warning
, btn-outline-info
, and btn-outline-light
: These classes are used to create an outline button with a colored border.
btn-link
: This class is used to create a button that looks like a link.