* {
    margin: 0 auto;
}

.center {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
  }

.center-content
{
    width: 50%;
    text-align: center;
    padding: 20px;
    border: 3px solid darkblue;
    border-radius: 10px;
    color: darkblue;
}