input[type~="submit"],input[type~="button"],input[type~="reset"] {background: transparent url('http://www.csomsk.ru/knopka/kn1.gif');border: 1px solid #3b6798;color: #fff;text-decoration:none;text-align:center;cursor:pointer;padding:2px}  
  input[type~="submit"]:hover,input[type~="button"]:hover,input[type~="reset"]:hover {text-decoration:none;background:transparent url('http://www.csomsk.ru/knopka/kn2.gif');border: 1px solid #3b6798;color: #fff;text-decoration:none;cursor:pointer;  
  text-align:center;}