body {
  margin: 0 auto;
}

div {
  margin: 0 auto;
  text-align: center;
}

.result-container {
  width: 80%;
}

.img-container {
  margin-top: 30px;
}

.title {
  margin-top: 10px;
}

.input-title {
  text-align: left;
  margin-top: 60px;
}

.input-container {
  text-align: left;
  margin-top: 10px;
}

input {
  height: 40px;
}

.next {
  margin-top: 40px;
  height: 40px;
  line-height: 40px;
  background-color: #50E3C2;
}

@media screen and (min-width: 960px) {
  body {
    width: 960px;
    font-size: 20px;
  }
  div {
    width: 360px;
  }
  input {
    width: 360px;
  }
  .result-container {
    width: 50%;
  }
}

@media screen and (min-width: 450px) and (max-width: 960px) {
  body {
    width: 600px;
    font-size: 20px;
  }
  div {
    width: 360px;
  }
  input {
    width: 360px;
  }
  .result-container {
    width: 70%;
  }
}

@media screen and (min-width: 320px) and (max-width: 449px) {
  body {
    width: 100%;
    font-size: 16px;
  }
  div {
    width: 80%;
  }
  input {
    width: 100%;
  }
}