html {
  background: url(../res/earth.jpg) no-repeat center center fixed;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
  animation: shrink 100s;
  animation-iteration-count: 1;
}

* {
  font-family:Verdana, Geneva, sans-serif
}

body {
  background-color: transparent;
}

@keyframes shrink {
  0% {
    background-size: auto 200%;
  }
  100% {
    background-size: auto 100%;
  }
}

button {
  background-color: #66AD32; /* Green */
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  cursor: pointer;
  -webkit-transition-duration: 0.8s; /* Safari */
  transition-duration: 0.8s;
  width: 140px;
}

button:hover {
  box-shadow: 0 12px 16px 0 rgba(0,0,0,0.24),0 17px 50px 0 rgba(0,0,0,0.19);
  background-color: #83c985;
}

.textstyle {
  color:white;
  font-size:16;margin-top:8;
  text-align:center;
}

.containerbackground {
  display:none;
  background-color:#ffffffdd;
  min-width:400px;
  max-width:900px;
  min-height:400px;
  color:black;
  margin: 0 auto;
  margin-top:15px;
}