body {
  background-image: url("bg.jpeg");
  background-size: cover;
  background-position: center 0%; 
  background-attachment: fixed;
  font-family: 'Tahoma';
  opacity: 0;
  transition: opacity 2s;
  -webkit-transition: opacity 2s;
}

.btn {
  background: #7a654c;
  border-radius: 30px;
  text-shadow: 1px 1px 2px #000000;
  font-family: 'Oooh Baby';
  color: #ffffff;
  font-size: 75px;
  padding: 20px 20px 20px 20px;
  text-align: center;
  position: absolute;
  bottom: 10%;
  left:0;
  right:0;
  margin-left: auto;
  margin-right: auto;
  width: 80%;
}

input {
  font-size: 25px;
  width: 200px;
  text-align: center;
  position: absolute;
  bottom: 40%;
  left:0;
  right:0;
  margin-left: auto;
  margin-right: auto;
  position: absolute;
  width: 80%;

  padding: 15px;
  display: inline-block;	
  border-radius: 9999em;
}

zentral {
  font-size: 25px;
  width: 200px;
  text-align: center;
  position: absolute;
  bottom: 40%;
  left:0;
  right:0;
  margin-left: auto;
  margin-right: auto;
  position: absolute;
  width: 80%;
}