.input-prepend {
  display: inline-block;
  background-color: #c9cccf;
  border: 1px solid #ced4da;
  height: 28px;
  padding: 3px;
  vertical-align: top;
}

.input-suf {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  width: 90px;
  height: 28px;
  border: 1px solid #ced4da;
  vertical-align: top;
  padding: 3px;
}