我正在尝试制作一个21点游戏，我想重叠卡片。假设下面的代码应该做到这一点，但我只得到了一列卡片。
我看了另一个类似的问题，但我不明白我做错了什么
提前感谢！
html,
body {
margin: 0px;
background-color: rgb(0, 46, 0);
color: white;
}
.title {
text-align: center;
background-color: black;
color: white;
padding: 20px;
font-size: 25px;
}
.card {
position: relative;
width: 150px;
left: 100px;
margin-left: -75px;
}<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-eOJMYsd53ii+scO/bJGFsiCZc+5NDVN2yr8+0RDqr0Ql0h+rP48ckxlpbzKgwra6" crossorigin="anonymous">
<title>Blackjack</title>
<link rel="stylesheet" href="assets/css/styles.css">
</head>
<body>
<header class="title">
Blackjack
</header>
<div class="row mt-2">
<div class="col text-center">
<button class="btn btn-danger">New Game</button>
<button class="btn btn-primary">Hit</button>
<button class="btn btn-primary">Stand</button>
</div>
</div>
<div class="row container">
<div class="col">
<h1>Player <small>0</small> Points</h1>
<div id="player-cards">
<img class="card" src="assets/cartas/10C.png">
<img class="card" src="assets/cartas/10C.png">
<img class="card" src="assets/cartas/10C.png">
<img class="card" src="assets/cartas/10C.png">
</div>
</div>
</div>我完全是个新手，所以也许我的错误很愚蠢，但我真的很感激你的帮助，因为我找不到错误或答案
这样试试。
html,
body {
margin: 0px;
background-color: rgb(0, 46, 0);
color: white;
}
.title {
text-align: center;
background-color: black;
color: white;
padding: 20px;
font-size: 25px;
}
#player-cards {
position: relative;
width: 150px;
left: 100px;
margin-left: -75px;
}
img.card{
position:absolute;
left:0px;
top:0px;
}
img.card{
position:absolute;
left:0px;
top:0px;
}
img.card:nth-child(2) {
transform: translate(0, 50%);
}
img.card:nth-child(3) {
transform: translate(0, 100%);
}
img.card:nth-child(4) {
transform: translate(0, 150%);
}<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-eOJMYsd53ii+scO/bJGFsiCZc+5NDVN2yr8+0RDqr0Ql0h+rP48ckxlpbzKgwra6" crossorigin="anonymous">
<title>Blackjack</title>
<link rel="stylesheet" href="assets/css/styles.css">
</head>
<body>
<header class="title">
Blackjack
</header>
<div class="row mt-2">
<div class="col text-center">
<button class="btn btn-danger">New Game</button>
<button class="btn btn-primary">Hit</button>
<button class="btn btn-primary">Stand</button>
</div>
</div>
<div class="row container">
<div class="col">
<h1>Player <small>0</small> Points</h1>
<div id="player-cards">
<img class="card" src="assets/cartas/10C.png">
<img class="card" src="assets/cartas/10C.png">
<img class="card" src="assets/cartas/10C.png">
<img class="card" src="assets/cartas/10C.png">
</div>
</div>
</div>