html {
       width: 100%;
       height: 100%;
       background-image: linear-gradient(to bottom right, #0B5C9E 0, #0C4B7F 44%, #0C3B60 100%);
       color: #fff;
       font-family: GeoSlb712MdBT, Georgia, serif;
       font-style: normal;
     }

     .box {
       position: absolute;
       left: 50%;
       top: 50%;
       transform: translate(-50%, -50%);
     }

     .heading {
       padding: 5px;
       font-size: 3em;
       text-align: center;
     }