Can someone please assist me in centering the login form on the login page? I've attempted using align-items-center and justify-content-center but it's still aligning at the top. Any help would be greatly appreciated as I've spent a significant amount of time trying to find a solution.
Thank you in advance.
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta content='IE=Edge' http-equiv='X-UA-Compatible'>
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" crossorigin="anonymous">
<link href="https://fonts.googleapis.com/css?family=Nunito:200,300,400,700" rel="stylesheet">
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.6.3/css/all.css" integrity="sha384-UHRtZLI+pbxtHCWp1t77Bi1L4ZtiqrqD80Kn4Z8NTSRyMA2Fd33n5dQ8lWUE00s/" crossorigin="anonymous">
<link rel="stylesheet" type="text/css" href="app.css">
<title>Your Real Estate Centre - The Portal for Foreclosure Auctions in Germany</title>
</head>
<body id="login" style="height:800px">
// Navigation and other HTML elements from the original text here...