
* 겪고 있는 문제 상황을 최대한 자세하게 작성해주세요.
* 문제 해결을 위해 어떤 시도를 해보았는지 구체적으로 함께 알려주세요.
f-title 부분이 css가 적용이 안되네요.. 뭐가 문제일까요?

코드는 이렇습니다
<!DOCTYPE html>
<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">
<title>Document</title>
<style>
@font-face {
font-family: "TTTtangsbudaejjigaeB";
src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2212@1.0/TTTtangsbudaejjigaeB.woff2')
format('woff2');
font-weight: normal;
font-style: normal;
}
body {
font-family: "TTTtangsbudaejjigaeB";
margin: 0;
display: flex;
justify-content: center;
background-image: url("./새벽녘.jpg");
}
.container {
width: 390px;
background-color: #6699ff;
height: 100%;
}
.photos {
margin-top: 30px;
}
.photo-frame {
background-color: white;
margin: 15px 20px;
height: 200px;
}
.footer {
display: flex;
flex-direction: column;
align-items: center;
}
.f-title {
color: white;
font-size: 25px;
font-weight: 900px;
}
.f-date {
color: white;
font-size: 15px;
font-weight: 500px;
}
</style>
</head>
<body>
<div class="container">
<div class="photos">
<div id="image1" class="photo-frame">
<span id="desc1" class="photo_description">
첫번째 이미지
</span>
</div>
<div id="image2" class="photo-frame">
<span id="desc2" class="photo_description">
두번째 이미지
</span>
</div>
<div id="image3" class="photo-frame">
<span id="desc3" class="photo_description">
세번째 이미지
</span>
</div>
<div id="image4" class="photo-frame">
<span id="desc4" class="photo_description">
네번째 이미지
</span>
</div>
</div>
<div class="footer">
<p calss="f-title">왜 안되는거야~~~</p>
<p class="f-date">2023.2.18</p>
</div>
</div>
</body>
</html>
