恼人的右边距
刚开始用bootstrap练习很抱歉，如果问题有点愚蠢。但无论我尝试过什么，都无法从右边摆脱这个空白区域（idk，如果是边缘或其他东西）。尝试在下面的代码中设置边距0到几乎每个类/标签，设置不同的宽度等。请帮助澄清我做错了什么？
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<title>CNN homepage</title>
<!-- Bootstrap core CSS -->
<link href="bootstrap\dist\css\Bootstrap.css" rel="stylesheet">
<!-- Custom styles for this template -->
<style>
:root {
--jumbotron-padding-y: 3rem;
}
.jumbotron {
padding-top: var(--jumbotron-padding-y);
padding-bottom: var(--jumbotron-padding-y);
margin-bottom: 0;
background-color: #fff;
}
@media (min-width: 768px) {
.jumbotron {
}
}
.jumbotron p:last-child {
margin-bottom: 0;
}
.jumbotron-heading {
font-weight: 300;
}
.jumbotron .container {
max-width: 40rem;
}
footer {
padding-top: 3rem;
padding-bottom: 3rem;
}
footer p {
margin-bottom: .25rem;
}
/* My code*/
.col-sm {
border: 2px solid black;
display: flex;
align-items: center;
justify-content: center;
background-color: #CB0003;
width: 100%;
}
.container {margin: 0;
padding: 0;
border: 2px solid black;
width:1500px;
}
.album {margin: 0;
padding: 0;
border: 2px solid black;
width:100%;}
footer {margin: 0;
padding: 0;
border: 2px solid black;
width:100%;}
header {margin: 0;
padding: 0;
border: 2px solid black;
width:100%;}
</style>
</head>
<body>
<header>
<div class="container">
<div class="row">
<div class="col-sm">
One of three columns
</div>
<div class="col-sm" id="img_container">
<img id="logo" src="07_homewok_cnn_IMG\cnns.jpg">
</div>
<div class="col-sm">
One of three columns
</div>
</div>
</div>
</header>
<main role="main">
<div class="album py-5 bg-light">
<div class="container">
<div class="row">
<div class="col-md-4">
<div class="card mb-4 box-shadow">
<img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
<div class="card-body">
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
<div class="d-flex justify-content-between align-items-center">
<div class="btn-group">
<button type="button" class="btn btn-sm btn-outline-secondary">View</button>
<button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
</div>
<small class="text-muted">9 mins</small>
</div>
</div>
</div>
</div>
<div class="col-md-4">
<div class="card mb-4 box-shadow">
<img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
<div class="card-body">
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
<div class="d-flex justify-content-between align-items-center">
<div class="btn-group">
<button type="button" class="btn btn-sm btn-outline-secondary">View</button>
<button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
</div>
<small class="text-muted">9 mins</small>
</div>
</div>
</div>
</div>
<div class="col-md-4">
<div class="card mb-4 box-shadow">
<img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
<div class="card-body">
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
<div class="d-flex justify-content-between align-items-center">
<div class="btn-group">
<button type="button" class="btn btn-sm btn-outline-secondary">View</button>
<button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
</div>
<small class="text-muted">9 mins</small>
</div>
</div>
</div>
</div>
<div class="col-md-4">
<div class="card mb-4 box-shadow">
<img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
<div class="card-body">
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
<div class="d-flex justify-content-between align-items-center">
<div class="btn-group">
<button type="button" class="btn btn-sm btn-outline-secondary">View</button>
<button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
</div>
<small class="text-muted">9 mins</small>
</div>
</div>
</div>
</div>
<div class="col-md-4">
<div class="card mb-4 box-shadow">
<img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
<div class="card-body">
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
<div class="d-flex justify-content-between align-items-center">
<div class="btn-group">
<button type="button" class="btn btn-sm btn-outline-secondary">View</button>
<button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
</div>
<small class="text-muted">9 mins</small>
</div>
</div>
</div>
</div>
<div class="col-md-4">
<div class="card mb-4 box-shadow">
<img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
<div class="card-body">
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
<div class="d-flex justify-content-between align-items-center">
<div class="btn-group">
<button type="button" class="btn btn-sm btn-outline-secondary">View</button>
<button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
</div>
<small class="text-muted">9 mins</small>
</div>
</div>
</div>
</div>
<div class="col-md-4">
<div class="card mb-4 box-shadow">
<img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
<div class="card-body">
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
<div class="d-flex justify-content-between align-items-center">
<div class="btn-group">
<button type="button" class="btn btn-sm btn-outline-secondary">View</button>
<button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
</div>
<small class="text-muted">9 mins</small>
</div>
</div>
</div>
</div>
<div class="col-md-4">
<div class="card mb-4 box-shadow">
<img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
<div class="card-body">
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
<div class="d-flex justify-content-between align-items-center">
<div class="btn-group">
<button type="button" class="btn btn-sm btn-outline-secondary">View</button>
<button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
</div>
<small class="text-muted">9 mins</small>
</div>
</div>
</div>
</div>
<div class="col-md-4">
<div class="card mb-4 box-shadow">
<img class="card-img-top" data-src="holder.js/100px225?theme=thumb&bg=55595c&fg=eceeef&text=Thumbnail" alt="Card image cap">
<div class="card-body">
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
<div class="d-flex justify-content-between align-items-center">
<div class="btn-group">
<button type="button" class="btn btn-sm btn-outline-secondary">View</button>
<button type="button" class="btn btn-sm btn-outline-secondary">Edit</button>
</div>
<small class="text-muted">9 mins</small>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</main>
<footer class="text-muted">
<div class="container">
<p class="float-right">
<a href="#">Back to top</a>
</p>
<p>Album example is © Bootstrap, but please download and customize it for yourself!</p>
<p>New to Bootstrap? <a href="../../">Visit the homepage</a> or read our <a href="../../getting-started/">getting started guide</a>.</p>
</div>
</footer>
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
</body>
</html>
2 个答案:
答案 0 :(得分：0)
引导程序中行类中左右两侧有 margin（-15px）。将其更改为0或只添加到行类 no-gutters
答案 1 :(得分：0)
解决了它。事实证明.container类设置了块的固定大小，我需要使用.container-fluid类。谢谢大家的帮助。）
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