.btn-*, .btn-outline-* classes to change the visual style of the button.
Outlined white color style is best suitable for secondary buttons.
Predefined solid color button styles.
Fancy larger or smaller buttons? Add
.btn-lg or .btn-sm for additional sizes.
.rounded-pill utility class to make buttons more rounded.
This group of buttons provide checkbox or radio style button toggling.
A contained button with an icon.
With fixed width and height.
Use spinners within buttons to indicate an action is currently processing or taking place. You may also swap the text out of the spinner element and utilize button text as needed.