@import url('https://fonts.googleapis.com/css2?family=Roboto&display=swap');


  body {
    background-color: #f0f0f0;
    font-family: Roboto;
  }

  .container {
    text-align: center;
    max-width: 400px;
    margin: 0 auto;
  }

  form {
    display: flex;
    align-items: center;
    gap: 20px;
  }

  form span:last-child {
    width: 100px;
  }

  form input[type="text"] {
    font-size: 20pt;
    width: 100%;
  }

  form input[type="submit"] {
    padding: 8px 0;
    font-size: 15px;
    width: 100%;
  }

  div.more-words {
    max-height: 0;
    overflow: hidden;
    transform: scaleY(0);
    transform-origin: top;
    transition: all 2s;
    background-color: aquamarine;
  }

  div.less-words {
    background-color: blueviolet;
    color: white;
    font-size: small;
    border-radius: 3px;
    padding: 5px 10px;
    margin-top: 5px;
  }

  div.openletterbox div.more-words {
    max-height: fit-content;
    transform: scaleY(1);
  }

  div.openletterbox div.less-words {
    display: none;
  }

  .letterbox {
    display: inline-block;
    vertical-align: top;
    padding: 20px;
    text-align: left;
  }