html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

html {
  height: 100%;
  margin: 0;
}

body {
    height: 100%;
    display: flex;    
    justify-content: center;
    align-items: center;
}

.card {
    border-radius: 10px;
    padding: 15px 15px;
    /*width: 400px;*/
}