.avatar{color:#fff;border-radius:50%}.avatar-sm{min-height:30px;min-width:30px;max-width:30px;max-height:30px;font-size:12px}.avatar-md{min-height:45px;min-width:45px;max-width:45px;max-height:45px;font-size:15px}.avatar-lg{min-height:100px;min-width:100px;max-width:100px;max-height:100px;font-size:30px}