Button
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Default Buttons
Use the button classes on an <a>, <button>, or <input> element.
Rounded Buttons
Add .btn-rounded to default button to get rounded corners.
Button tags
The .btn classes are designed to be used with the <button> element. However, you can also use these classes on <a> or <input> elements (though some browsers may apply a slightly different rendering).
Sizes
Fancy larger or smaller buttons? Add .btn-lg or .btn-sm for additional sizes.
Disabled Buttons
Make buttons look inactive by adding the disabled boolean attribute to any <button> element.
Button Width
Create buttons with minimum width by adding add .w-xs, .w-sm, .w-md or .w-lg.
grids Button
Create block level buttons,with by adding add .d-grid.
Social Buttons
Use class .btn-@yoursocial to the parent.