i cant get my code to work, i am trying to make 16 squares in bootstrap but the only thing that appears are there borders. Please help
<!DOCTYPE html>
<html>
<head>
<link rel="icon" href="favicon.png" type="image/x-icon">
<link rel="stylesheet" href="resources/css/reset.css">
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<link rel="stylesheet" href="resources/css/style.css">
<title>Match Game</title>
</head>
<body>
<div class="container">
<div class="row">
<div class="gameInstructions col-sm-12 col-md-3">
<h1>Match Game</h1>
<h2>Rules</h2>
<p>Click on a card to reveal the number on the other side. Click on a second card to try and find a match to the first. If you succeed, the pair will be removed from play. If not, try again!</p>
<h2>How To Win</h2>
<p>You win when all pairs have been found.</p>
</div>
<div id="game"class="col-sm-12 col-md-9">
<div class="row">
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
<div class="col-xs-3 card"></div>
</div>
</div>
</div>
</div>
<script
src="https://code.jquery.com/jquery-3.1.1.min.js"
integrity="sha256-hVVnYaiADRTO2PzUGmuLJr8BLUSjGIZsDYGmIJLv2b8="
crossorigin="anonymous"></script>
<script type="text/javascript" src="./resources/js/match-game.js"></script>
<script type="text/javascript" src="./resources/js/tests.js"></script>
</body>
</html>
/*Universal Styling*/
html{
font-size: 14px;
}
body{
font-family: "Work Sans", sans-serif;
background-color: rgb(255,242,242);
padding-top: 5.25rem;
}
p{
color: rgb(74, 74, 74);
}
h1{
font-weight: bold;
font-size: 2.5rem;
color: rgb(32, 64, 86);
}
h2{
font-weight: bold;
font-size: 1rem;
}
/*Specified Styling*/
.card{
height: 12.5rem;
background-color: rgb(153, 153, 153);
border: 4px solid #fff;
border-radius: 8px;
}
