.main {
  margin: 10%;
  padding: 5%;
  background-color: rgba(255, 255, 255, 0.7);
}

.wrapper {
  width: 60%;
  height: 60%;
  top: 0;
  left: 0;
  text-align: center;
  margin: 0 auto;
}
.block {
  margin-bottom: 40px;
}
.row {
  margin-bottom: 30px;
}
.full {
  background-color: white;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  min-height: 100%;
  min-width: 100%;
  position: fixed;
  top: 0;
  left: 0;
}
#js_bg_upper {
  z-index: -1;
}
#js_bg_lower {
  z-index: -2;
}