body{
  background: url(images/33.jpeg) no-repeat;
  background-size: cover;
}
form{
  width: 380px;
  height: 350px;
  border-radius: 10px;
  background: rgba(100,109,189,0.4);
  margin:150px auto;
}
form:hover{
  box-shadow:  1px 1px 30px 3px #fff;
}
input { 
  width: 90%;
  padding: 15px 0px;
  color: #fff; 
  border: none;
  border-bottom: 1px solid #fff; 
  outline: none;
  background: none;
} 
ul li{
  padding: 10px ;
  list-style: none;
  color: #fff;
}
li{
  position: relative;
  margin-bottom: 10px;
}
h2{
  margin-left: 80px;
}
button{
  padding: 10px 40px;
  border:none;
  display: block;
  background: skyblue;
  color: #fff;
  border-radius: 3px;
  margin-left: 70px;
}
button:hover{
  opacity: 0.8;
}
button:active{
  text-shadow: 0 -1px 0 ;
}
label{
  position: absolute;
  top: 0;
  left: 8px;
  transition: all 0.5s;
}
input:focus+label,
input:valid+label{
  top:-8px;
  color: #FF9966;
  font-size: 12px;
}