5 : JavaScript 기반 (Vue, React)
4 : jQuery 기반
https://getbootstrap.com/docs/4.6/getting-started/introduction/
<!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://cdn.jsdelivr.net/npm/bootstrap@4.6.2/dist/css/bootstrap.min.css" integrity="sha384-xOolHFLEh07PJGoPkLv1IbcEPTNtaed2xpHsD9ESMhqIYd0nLMwNLD69Npy4HI+N" crossorigin="anonymous">
<title>Hello, world!</title>
</head>
<body>
<h1>Hello, world!</h1>
<!-- Optional JavaScript; choose one of the two! -->
<!-- Option 1: jQuery and Bootstrap Bundle (includes Popper) -->
<script src="https://cdn.jsdelivr.net/npm/jquery@3.5.1/dist/jquery.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-Fy6S3B9q64WdZWQUiU+q4/2Lc9npb8tCaSX9FK7E8HnRr0Jz8D6OP9dO5Vg3Q9ct" crossorigin="anonymous"></script>
<!-- Option 2: Separate Popper and Bootstrap JS -->
<!--
<script src="https://cdn.jsdelivr.net/npm/jquery@3.5.1/dist/jquery.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js" integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.2/dist/js/bootstrap.min.js" integrity="sha384-+sLIOodYLS7CIrQpBjl+C7nPvqq+FbNUBDunl/OZv93DB7Ln/533i8e/mZXLi/P+" crossorigin="anonymous"></script>
-->
</body>
</html>
<span class="badge badge-primary">Primary</span>
<span class="badge badge-secondary">Secondary</span>
<span class="badge badge-success">Success</span>
<span class="badge badge-danger">Danger</span>
<span class="badge badge-warning">Warning</span>
<span class="badge badge-info">Info</span>
<span class="badge badge-light">Light</span>
<span class="badge badge-dark">Dark</span>
class="rounded"
class="rounded-circle"
class="float-left"
class="float-right"
img class="img-fluid" : 반응형으로 이미지가 움직일 수 있도록 한다.
<div class="container">
<div class="row">
<div class="col-md-6" style="background-color:lightblue">50%</div>
<div class="col-md-6" style="background-color:cadetblue">50%</div>
</div>
<div class="row">
<div class="col-md-4" style="background-color:lightblue">33%</div>
<div class="col-md-4" style="background-color:cadetblue">33%</div>
<div class="col-md-4" style="background-color:seagreen">33%</div>
</div>
<div class="row"> <!-- 숫자를 쓰지 않아도 알아서 배분해준다. -->
<div class="col-sm" style="background-color:lightblue">33%</div>
<div class="col-sm" style="background-color:cadetblue">33%</div>
<div class="col-sm" style="background-color:seagreen">33%</div>
</div>
<div class="row">
<div class="col-md-8" style="background-color: lightcoral;">67%</div>
<div class="col-md-4" style="background-color: lightpink;">33%</div>
</div>
<div class="row"> <!-- 화면 크기를 지정하지 않으면 계속 유지한다. -->
<div class="col" style="background-color: lightcoral;">25</div>
<div class="col" style="background-color: lightpink;">25</div>
<div class="col" style="background-color: lightcoral;">25</div>
<div class="col" style="background-color: lightpink;">25</div>
</div>
</div>