html, body {
  margin: 0;
  padding: 0;
}
body {
    background-image: url("img/background2.jpg");
}
.center {
    text-align: center;
    border: 1px solid black;
    background-color: lightblue;
}
.center_image {
    text-align: center;
}
.justify {
    text-align: justify;
}