html {
	overlow: hidden;
	font-family: sans-serif;
	text-align: center;
}
.down {
  width: 100%;
  margin: 0;
  display: block;
  height: 300px;
}
.circle-button {
  background-color: #0040FF;
  width: 70px;
  height: 70px;
  position: absolute;
  right: 3%;
  top: 560px;
  border-radius: 50%;
  box-shadow: 0px 0px 7px #555;
  color: #fff;
  font-size: 15px;
  line-height: 65px;
  text-align: center;
  transition: 300ms ease;
}
 
}