a.go-top {
  position: fixed;
  right: 0;
  bottom: 50px;
  display: block;
  overflow: hidden;
  width: 44px;
  height: 40px;
  background: #0649a0 url(/img/go-top.png) 50% 50% no-repeat;
  text-indent: -50em;
}
a:hover {
  color: #0649a0;
  text-decoration: none;
}

.review-image{
  width: 100%;
  height: auto;
}

img.livro{
  width: auto;
  height: 40px;
}