Add .input-group-prepend .input-group-text class before <input>
Add .input-group-append .input-group-text class after <input>
You can use both at the same time.
Use i.spinner inside .input-group-text.
Use i.spinner inside .input-group-text.
You can use both at the same time.
Add .input-group-text before <input> and add checkbox inside.
Add .input-group-text before <input> and add radio inside.
Add .input-group.input-group-lg for large addon.
Add .input-group.input-group-sm for small addon.