/* CSS Document */
body {
  margin: auto;
  font-family: 'Arial', sans-serif; 
  background-color: #3A5C7B;  
}

/* Centered Image Code */

 .center {
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

 .center {
  margin: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}