UnderCover/flaskr/static/styles.css

html {
  height: 100%;
}

body {
  background-color: #f0f0f0;
  line-height: 200%;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  flex-direction: column;
  font-family: sans;
}

h1, h2 {
  text-align: center;
}

h1 {
  user-select: none;
}

/* Small screens */
@media only screen and (max-width: 1080px) {
  body {
    width: 85vw;
  }
  h1 {
    font-size: 300%;
  }
  h2 {
    font-size: 200%;
    line-height: 100%;
    margin-top: 0;
    margin-bottom: 0.5em;
  }
  label {
    font-size: 150%;
  }
  input {
    font-size: 200%;
    width: 100%;
  }
  form {
    width: 100%;
  }
  dd {
    margin-bottom: 2em;
    margin-left: 0;
  }
  textarea {
    width: 80vw;
    font-size: 200%;
  }
  .bigtext {
    min-height: 40vh;
  }
}

/* Big screens */
@media only screen and (min-width: 1081px) {
  body {
    min-height: 98%;
    width: 40vw;
  }
  h1 {
    font-size: 300%;
  }
  input, textarea {
    margin-bottom: 0.5em;
    font-size: 105%;
    font-family: sans;
  }
  dd {
    margin-left: 0;
  }
  dt {
    margin-left: 0.5em;
  }
  dl {
    margin-top: 0;
  }
  #closingtext {
    width: 50%;
  }
}

form {
  display: flex;
  flex-grow: 1;
  flex-direction: column;
}

dl {
  display: flex;
  flex-grow: 1;
  flex-direction: column;
}

dd {
  display: flex;
}

textarea {
  flex-grow: 1;
  padding: 0.5em;
}

.bigtext {
  flex-grow: 1;
  min-height: 35vh;
  font-size: 90%;
}

.errors {
  color: #a40f0f;
}

.submit {
  margin-left: auto;
  padding: 0.5em 1em 0.5em 1em;
}

#body {
  flex-grow: 1;
}