.f input {
  border: #b8b7b6 solid 1px;
  height: 20px;
}

.f input.submit {
  border: none;
  background-color: #b8b7b6;
  text-align: center;
  color: #fff;
  height: 20px;
  cursor: pointer;
  font-size: 0.675em;
  text-transform: uppercase;
  font-weight: bold;
  padding: 0 5px;
}

.f input:hover.submit {
  background-color: #696969;
}