.verification_code_box {
  width: inherit;
  display: flex;
  justify-content: center;
  align-items: center;
}
.verification_code_box input {
  width: 30px;
  height: 30px;
  font-size: 16px;
  background-color: #fff;
  outline: none;
  border-radius: 5px;
  border: 1px solid #eee;
  margin-right: 10px;
  box-sizing: border-box;
  text-align: center;
}
.verification_code_box input:last-child {
  margin-right: 0;
}