html {
    background: #000051;
    color: white;
    font-family: ui-monospace, 
             Menlo, Monaco, 
             "Cascadia Mono", "Segoe UI Mono", 
             "Roboto Mono", 
             "Oxygen Mono", 
             "Ubuntu Monospace", 
             "Source Code Pro",
             "Fira Mono", 
             "Droid Sans Mono", 
             "Courier New", monospace;
    text-align: center;
}

a {
    color: #fff350;
}

.box {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 90vh;

}