#mytopbuttonlink {
  position: fixed;
  top: -142px;
  left: 40%;
  width: 280px;
  display: block;
  transition: top 0.3s;
}

#mytopbuttonlink a {
  display: block;
  color: #FFFFFF;
  width: 280px;
  text-align: center;
  padding: 15px;
  text-decoration: none;
  font-size: 17px;
  border: 1px solid black;
  border-radius: 0px 0px 10px 10px;
  box-shadow: 5px 10px 8px #000000;
}

#mytopbuttonlink a:hover {
  width: 280px;
  background-color: #00FF40;
  color: black;
}

#powered {
  background-color: #0000FF;
  text-align:center;
  line-height:15px;
}