요청 하는 쪽 : 클라이언트
요청 받는 쪽 : 서버
→ api라는 창구를 통해서 규칙에 따라 줌
→ html,css,js 또는 mongoDB 는 JSON 형태로 돌려줌
# 배경관련
background-color
background-image
background-size
# 사이즈
width
height
# 폰트
font-size
font-weight
font-famliy
color
# 간격
margin
padding
# posting-box라는 클래스 안에 → custom-file이라는 클래스를 지칭!
.posting-box > .custom-file {
margin-bottom: 20px;
}
< 부트스트랩 시작 템플릿 >
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"
integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q"
crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"
integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl"
crossorigin="anonymous"></script>
<title>스파르타코딩클럽 | 부트스트랩 연습하기</title>
</head>
<body>
<h1>이걸로 시작해보죠!</h1>
</body>
</html>