body {
  background-color: black;
  color: #00FFFF;
  font-family: "Trebuchet MS",sans-serif; 
  text-align: center;
  height: 100%;
}

.boxed {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 2px solid #000000;
  height: 350px;
  width: 350px;
  background-color: #000000;
    
}