body {
    font-family: cursive;
    text-align: center;
    padding: 100px;
    background-color: cornflowerblue;
}

.container {
    width: 90%;
    max-width: 500px;
    background-color: white;
    margin: auto;
    padding: 30px 20px 50px 20px;
    border: none;
    border-radius: 50px;
}

.input-sec {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
}

p {
    font-size: 20px;
}

button {
    padding: 9px 20px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    border: 2px solid chartreuse;
    border-radius: 8px;
    background-color: chartreuse;
}

/* Below 600px */
@media (max-width: 600px) {
  body {
    padding: 50px 20px;
  }

  .container {
    padding: 25px 15px 40px 15px;
    border-radius: 30px;
  }

  .input-sec {
    gap: 20px;
  }

  p {
    font-size: 18px;
  }

  button {
    font-size: 14px;
    padding: 8px 16px;
  }
}

/* Below 400px */
@media (max-width: 400px) {
  .input-sec {
    flex-direction: column;
    gap: 15px;
  }

  p {
    font-size: 16px;
  }

  button {
    width: 100%;
  }
}

/* Below 260px */
@media (max-width: 260px) {
  .container {
    padding: 20px 10px;
    border-radius: 20px;
  }

  p {
    font-size: 14px;
  }

  button {
    font-size: 13px;
    padding: 6px 12px;
  }
}