body,
table {
  font-size: small;
}

svg {
  margin: 0.5rem;
}

.svg-book {
  background-image: url(../assets/book.svg);
  size: 32px;
}

.gradient-custom {
  /* fallback for old browsers */
  background: #64f8b9;

  /* Chrome 10-25, Safari 5.1-6 */
  background: -webkit-linear-gradient(to right, rgba(100, 248, 185, 0.5), rgba(78, 157, 143, 0.5));

  /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
  background: linear-gradient(to right, rgba(100, 248, 185, 0.5), rgba(78, 157, 143, 0.5))
}

input:required:invalid,
input:focus:invalid {
  border: 1px solid red;
}

input:required:valid {
  border: 1px solid lightgreen;
}

.feedback {
  color: red;
  font-size: 0.8em;
  height: 16px;
}

.tooltip {
  font-size: 3rem;
}

h1,
h2,
h3,
h4,
h5 {
  color: #206a34;
}