这是我要的布局
这是我现在的代码
<div class="container">
<h2 class="title mt-3 mb-4">Title</h2>
<div class="container">
<div class="row">
<div class="col">
firts
</div>
</div>
<div class="row">
<div class="col">
second
</div>
</div>
</div>
</div>
只需将您的项目在 .容器 类的bootstrap和添加一些css。
在[]中查看我的回答。https:/codepen.ioArnab_Dattapenxxwgryd]
.middlePage{
display: flex;
justify-content:center;
align-items: center;
}
.proj{
width: 100%;
}
.middlediv{
width: 100% ;
border: 5px solid #000;
border-radius: 12px;
height: 100px;
margin: 25px 0px;
}
.custBtn{
width: 100%;
border: 5px solid #dc3545 !important;
font-weight: 600;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Bootstrap</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css"
integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
</head>
<body>
<div class="container">
<div class="middlePage">
<div class="proj">
<h1>TITLE</h1>
<div class="middlediv"></div>
<div class="middlediv"></div>
<div class="btn btn-outline-danger custBtn">button</div>
</div>
</div>
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js"
integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous">
</script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js"
integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous">
</script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"
integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous">
</script>
</body>
</html>