Bootstrap Jumbotrons离开了我网站上的容器，这意味着移动版本上的导航栏无法显示在屏幕上。在没有巨型飞轮的其他页面上，不会出现此问题。
我尝试使用Card代替，但是当我将其放置为文字以外的其他内容时会遇到一些问题
<div class="row">
<div class="jumbotron col-lg-8 col-md-12"
style='margin-left: 15px; margin-top: 15px; padding-top: 10px; padding-bottom: 10px; margin-bottom: 10px;'>
<h1 class="display-3">
<b>Welcome to SkyWars.fun</b>
</h1>
<p class="lead">We focus on updating regularly, and we listen close to
our community suggestions.</p>
<hr class="my-4">
<p>We have a perk system, comparable with kits or abillities. Any
player can enable 3 perks at once. These perks give small advantages
for your gameplay. Choose wisely, and adapt with your perks! Happy
SkyWars! And have fun!</p>
<p class="lead">
<a class="btn btn-primary btn-lg" href="../tips" role="button">Tips
and tricks</a>
</p>
</div>
</div>
和导航栏
<nav class="navbar navbar-expand-lg navbar-dark bg-primary" role="navigation">
<a class="navbar-brand" href="../">IP: SkyWars.fun</a>
<button class="navbar-toggler" type="button" data-toggle="collapse"
data-target="#navbarColor01" aria-controls="navbarColor01"
aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarColor01">
<ul class="navbar-nav mr-auto">
<li
class="nav-item <?php if($_SERVER['REQUEST_URI'] === '/') echo 'active' ?>"><a
class="nav-link" href="https://www.skywars.fun/" title="Go to the main page">Home </a></li>
<li class="nav-item <?php if(isPage('/about/')) echo 'active' ?>"><a
class="nav-link" href="https://www.skywars.fun/about" title="Information about SkyWars.fun">About</a></li>
<li class="nav-item <?php if(isPage('/tips/')) echo 'active' ?>"><a
class="nav-link" href="https://www.skywars.fun/tips" title="Tips and Tricks">Tips</a></li>
<li class="nav-item <?php if(isPage('/donate/')) echo 'active' ?>"><a
class="nav-link" href="https://www.skywars.fun/donate" title="Donate">Donate</a></li>
<li class="nav-item <?php if(isPage('/search/')) echo 'active' ?>"><a
class="nav-link" href="https://www.skywars.fun/search" title="Leaderboard">Leaderboard</a></li>
</ul>
<form class="form-inline my-2 my-lg-0" action="../search" title="Lookup player">
<input class="form-control mr-sm-2" type="text" name="player"
placeholder="Search player">
<button class="btn btn-secondary my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
问题图片
https://drive.google.com/file/d/0ByAYcnq6pPDmNlJsUUNBbkM1aFRITEQ5TUF4U0JxWXpOYVBV/view?usp=sharing https://drive.google.com/file/d/0ByAYcnq6pPDmcnVsbTNMbkI2MnlNdmZocmtXV0FWbXpmUTdN/view?usp=sharing
答案 0 :(得分：1)
* {
margin: 0;
padding: 0;
}
.banner {
background: #e9ecef;
}
@media only screen and (max-width: 767px) {
.display-3 {
font-size: 2rem !important;
}
}<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JS Bin</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-dark bg-primary" role="navigation">
<a class="navbar-brand" href="../">IP: SkyWars.fun</a>
<button class="navbar-toggler" type="button" data-toggle="collapse"
data-target="#navbarColor01" aria-controls="navbarColor01"
aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarColor01">
<ul class="navbar-nav mr-auto">
<li
class="nav-item <?php if($_SERVER['REQUEST_URI'] === '/') echo 'active' ?>"><a class="nav-link" href="https://www.skywars.fun/" title="Go to the main page">Home </a></li>
<li class="nav-item <?php if(isPage('/about/')) echo 'active' ?>"><a class="nav-link" href="https://www.skywars.fun/about" title="Information about SkyWars.fun">About</a></li>
<li class="nav-item <?php if(isPage('/tips/')) echo 'active' ?>"><a class="nav-link" href="https://www.skywars.fun/tips" title="Tips and Tricks">Tips</a></li>
<li class="nav-item <?php if(isPage('/donate/')) echo 'active' ?>"><a class="nav-link" href="https://www.skywars.fun/donate" title="Donate">Donate</a></li>
<li class="nav-item <?php if(isPage('/search/')) echo 'active' ?>"><a class="nav-link" href="https://www.skywars.fun/search" title="Leaderboard">Leaderboard</a></li>
</ul>
<form class="form-inline my-2 my-lg-0" action="../search" title="Lookup player">
<input class="form-control mr-sm-2" type="text" name="player"
placeholder="Search player">
<button class="btn btn-secondary my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
<section class="banner">
<div class="container-fluid">
<div class="row">
<div class="col-12">
<div class="jumbotron">
<h1 class="display-3">
<b>Welcome to SkyWars.fun</b>
</h1>
<p class="lead">We focus on updating regularly, and we listen close to
our community suggestions.
</p>
<hr class="my-4">
<p>We have a perk system, comparable with kits or abillities. Any
player can enable 3 perks at once. These perks give small advantages
for your gameplay. Choose wisely, and adapt with your perks! Happy
SkyWars! And have fun!
</p>
<p class="lead">
<a class="btn btn-primary btn-lg" href="../tips" role="button">Tips
and tricks</a>
</p>
</div>
</div>
</div>
</div>
</section>
<script
src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
</body>
</html>
我减小了小型设备的字体大小，它已经从容器中移出了。在使用主类之前，还请使用 .container> .row> .col-lg-12 [仅作为示例] 。供参考，请通过https://getbootstrap.com/docs/4.1/layout/grid/此链接。希望能解决您的问题