body {
  width: 100vw;
  height: 100vh;
  margin: 0;
  padding: 0;
  background: #ddd;
  font-family: Arial;
}
header,
footer,
article {
  margin: auto;
  max-width: 1024px;
  /*padding: 16px;*/
}
header {
  background: salmon;
}
footer {
  background: #fcaca3;
}
article {
  background: #fff;
}
article #reader-container {
  width: 100%;
  /*height: 512px;*/
}
#reader-container .controls .left, #reader-container .controls .right
{
  top:15%!important;
  /*bottom: 45%!important*/
}
#reader-container .content .pages
{
  top: 10%!important
}
#reader-container .content .pages .overlayer
{
  top: 3%!important

}