body
 {

  background-image: url('img_background.jpg');
  background-repeat: no-repeat;
  background-attachment: fixed;  
  background-size: cover;

}

.box 
 {

  width: 250px;
  height: 600px
  padding: 20px;
  margin: 0; 
  background-color: LightGray;
  width: 20%;
  margin: auto;  
  border: 1px solid gray;

}

input, textarea
 {

  display: block;
  margin: 0 auto;

}

input[type="radio"]
 {

  display: inline;
  margin: 0 auto;

}

table 
 {
  border-collapse: collapse;
  width: 50%;
  margin-top: 20px;
  margin: 0 auto;
}
th, td 
 {
  border: 1px solid #333;
  padding: 10px;
  text-align: left;
  background-color: #eee;
}