html, body {
    height: 100%;
}
body {
    margin: 0;
}
.container {
    display: flex;
    justify-content: center;
    /*
    // enable these for centered view
    height: 100%;
    align-items: center;
    */
}
.container {
  display: flex;
  justify-content: center;
}

.box {
  
  text-align: center;
}

.row {
    margin: 5px;
}

.menu {
  margin-top: 30px; 
  margin-bottom: 30px;
}