.top-cont {
  width: 100%;
  height: 100px;
}

.bottom-cont {
  width: 100%;
  height: 500px;
}

.stick-cont {
  width: 800px;
  height: 50px;
  line-height: 50px;
  background: rgba(0, 0, 0, 0.1);
  color: #000;
  text-align: center;
}