* {
  box-sizing: border-box;
}

body {
  background-image: url("../img/sfondo.jpg");
  height: 100%;
  background-repeat: no-repeat;
  background-size: cover;
  }

.container {
  width: 80%;
  margin: auto;
  overflow: hidden;
}

h1,
h2 {
  text-align: center;
  font-size: 50px;
  font-family: 'Road Rage';
}

.inputform {
  text-align: center;
}

#search-input {
  width: 80%;
  height: 40px;
}

#submit-button {
  background-color: #0000ff;
  color: white;
  border: none;
  height: 40px;
  width: 20%;
  opacity: 1;
  transition: 0.3s;
  cursor: pointer;
  border-radius: 15px;
}

#submit-button:hover {
  opacity: 0.6;
}

.results-box {
  background: #f4f4f4;
  padding: 5px 0px 5px 0px;
  margin-bottom: 10px;
}

.results-box li {
  list-style: none;
}

#output {
  margin-top: 30px;
  margin-bottom: 30px;
  display: grid;
  grid-template-columns: 50% 50%;
  grid-gap: 2rem;
}

.book-info {
  margin-top: 5px;
  background-color: #00c807;
  color: white;
  border: none;
  height: 40px;
  width: 120px;
  opacity: 1;
  transition: 0.3s;
}

.book-info:hover {
  opacity: 0.6;
}

@media (max-width: 768px) {
  #output {
    display: grid;
    grid-template-columns: none;
    margin-bottom: 50px;
  }
}