body {
  font-family: "Roboto Mono", monospace;
  text-align: center;
  background-image: url("https://cdn.mos.cms.futurecdn.net/nKLsP2bXfdCaSDepXkE8BJ.jpeg");
  background-color: #000000;
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
}
.container {
  text-align: center;
  padding: 20px;
}
.page-title {
  color: #C2FBFC;
  margin: 0 0 5px;
  font-style: italic;
  font-size: 42px;
}
.page-subtitle {
  color: #ffffff;
  margin-top: 5px;
}
.quote h3{
  margin: 2em 0;
  color:  #C2FBFC;
  text-align: center;
  font-size: 19px;
}
.quote strong{
  font-weight: bold;
}
.quote em{
  font-style: italic;
}
.page-logo {
  display: block;
  width: 200px;
  margin-top: 10px;
  margin-bottom: 20px;
}
.alura-logo {
  width: 40px;
  position: absolute;
  top: 10px;
  right: 10px;
}
body > img{
  margin: 10px 10px;
}
img{
  max-height: 250px;
  margin: 15px 10px 5px 10px;
  display: inline;
  border: 2px solid #FF8C33;
  border-radius: 10px;
}
img:hover{
  transform: scale(1.1);
  border: 2px solid #33DFFF;
}
h2{
  color: #C2FBFC;
}
.padrão{
  display: block;
  margin: 20px auto;
  padding: 10px 25px;
  width: 23%;
  text-align: center;
}
button{
  width: 10%;
  margin: 10px 0;
  padding: 15px 0;
  background-color: #C2FBFC;
  color: orange;
  font-weight: bold;
  font-size: 18px;
  border-radius: 5px;
  cursor: pointer;
  border: 2px solid #e0a338;
  transition: 1s all;
}
button:hover{
  background-color: #33DFFF;
  border: 2px solid #FF8C33;
  color: #FF8C33;
  transform: scale(1.2);
}
#listaLivros{
  width: 940px;
  margin: 1px auto;
  padding: 5px auto;
}
/* topo | direita | inferior | esquerda */