Setting white space for "nowrap" for an item on a page, ruins of fixed positioning in mobile browsers
The steps to replicate this issue are a bit cumbersome, but for those who care, please help me solve this mystery.
Try it out with any of the boot themes. For example http://getbootstrap.com/examples/navbar-fixed-top/
In Google Chrome Inspector, switch the device to view it in mobile mode. The navbar remains docked to the top when it is scrolled. This is as expected.
However, set some css paragraph as {white-space: "nowrap"}. The navbar is no longer docked, but scrolls with the rest of the page.
It took me a while to identify this unsuspecting criminal. Does anyone know why this is happening?
p {
white-space: nowrap;/* this ruins the layout in the mobile browser */
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<meta name="description" content="">
<meta name="author" content="">
<link rel="icon" href="../../favicon.ico">
<title>Fixed Top Navbar Example for Bootstrap</title>
<!-- Bootstrap core CSS -->
<link href="http://getbootstrap.com/dist/css/bootstrap.min.css" rel="stylesheet">
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<link href="../../assets/css/ie10-viewport-bug-workaround.css" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="http://getbootstrap.com/examples/navbar-fixed-top/navbar-fixed-top.css" rel="stylesheet">
<!-- Just for debugging purposes. Don't actually copy these 2 lines! -->
<!--[if lt IE 9]><script src="../../assets/js/ie8-responsive-file-warning.js"></script><![endif]-->
<script src="../../assets/js/ie-emulation-modes-warning.js"></script>
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<!-- Fixed navbar -->
<nav class="navbar navbar-default navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Project name</a>
</div>
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a></li>
<li><a href="#about">About</a></li>
<li><a href="#contact">Contact</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li role="separator" class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li><a href="#">Separated link</a></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="../navbar/">Default</a></li>
<li><a href="../navbar-static-top/">Static top</a></li>
<li class="active"><a href="./">Fixed top <span class="sr-only">(current)</span></a></li>
</ul>
</div><!--/.nav-collapse -->
</div>
</nav>
<div class="container">
<!-- Main component for a primary marketing message or call to action -->
<div class="jumbotron">
<h1>Navbar example</h1>
<p>This example is a quick exercise to illustrate how the default, static and fixed to top navbar work. It includes the responsive CSS and HTML, so it also adapts to your viewport and device.</p>
<p>To see the difference between static and fixed top navbars, just scroll.</p>
<p>
<a class="btn btn-lg btn-primary" href="../../components/#navbar" role="button">View navbar docs »</a>
</p>
</div>
</div> <!-- /container -->
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>window.jQuery || document.write('<script src="../../assets/js/vendor/jquery.min.js"><\/script>')</script>
<script src="../../dist/js/bootstrap.min.js"></script>
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<script src="../../assets/js/ie10-viewport-bug-workaround.js"></script>
</body>
</html>
source to share
Out of curiosity, why are you using white-space: nowrap;
there in particular? But anyway, the reason is that since navbar position: fixed;
, it makes 100% the width of the space that is used for the content of the text, so it expands the body tag.
As for why it's not scrolling, this is rather strange, because the fixed attribute is essentially ignored when scrolling down, but stops when scrolling up.
This CSS below has fixed it, although it just truncates the text rather than skipping it.
.jumbotron {
overflow-x: hidden;
}
Below is more information about the attribute.