body{
   width:1000px; margin:0 auto;
}

.demo{
  text-align: center;
  width: 100%;
  height: 100%;
  padding-top: 100px;
}

ul{
  list-style: none;
}

.demo p{
  margin: 0px 0px 25px 0px;
  font-size: 25px;
}

label{
  font-size: 40px;
  font-weight: bolder;
}

.demo li{
  margin: 15px;
}

.adress input{
  width: 400px;
  height: 30px;
  font-size: 20px;
  font-weight: bolder;
  border: 3px solid #1d5c42;
  border-radius: 10px;
  box-shadow: 0 3px 4px rgba(0, 0, 0, 0.32);
}


button{
  float: center;
  margin-top: 10px;
  padding: 0px 20px 0px 20px;
  background-color: #e6e6e6;
  font-size: 20px;
  color: #000000;
  border-radius: 10%;
  box-shadow: 2px 2px 1px #0f0f0f;
  border: 2px solid #0f0f0f;
}

.check li{
  display: inline;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 70px;
  background-color: #1d5c42;
}

.header ul{
  margin-top: 10px;
  margin-bottom: 5px;
  padding-left: 5px;
}

.header li{
  display: inline;
  vertical-align: bottom;
}

.header text{
  text-align: center;
  color: #f0f0f0;
  font-size: 20px;
  font-weight: bolder;
}