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html - 网站上的居中按钮

转载 作者:太空宇宙 更新时间:2023-11-03 20:31:49 25 4
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<body>
<div class="navbar-collapse collapse inverse" id="navbar-header">
<div class="container-fluid">
<div class="about">
<h4>text</h4>
<p class="text</p>
<div class="imgWrapper">
<img id="photo" src="path/to/file"/>
</div>
</div>
<div class="social">
<p>text</p>
</div>
</div>
</div>

<div class="navbar navbar-static-top navbar-dark bg-inverse">
<div class="container-fluid">
<a id="logoutButton" href="logout.php" class="btn btn-lg btn-
primary">Logout</a>
<button id="navbar-button" class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbar-header" aria-controls="navbar-header" aria-expanded="false" aria-label="Toggle navigation"></button>
<a href="#" class="navbar-brand">Media Manager</a>
</div>
</div>

<section class="jumbotron text-xs-center">
<div class="container">
<h1 class="jumbotron-heading">Album list</h1>
<p id="jumbotron-header-text" class="lead text-muted">text</p>
<p>
<div id="fakeButton" class="col-sm-4 col-xs-4">
<label for="files" class="btn btn-primary btn-lg">Select Image</label>
<input id="files" style="visibility:hidden;" type="file">
</div>
</p>
</div>
</section>

...

我试图在我的 Jumbotron 上将 ID 为“fakeButton”的元素居中,但我失败得很惨。我尝试过的事情:

1) CSS 选择器

#fakeButton {
margin: auto !important;
float: none !important;
}

2) 使用 Bootstrap 类文本中心:

<div class="span7 text-center"></div>

我正在使用 Bootstrap 4。大部分代码取自这个 Bootstrap 示例:

http://v4-alpha.getbootstrap.com/examples/album/

我已确保 Bootstrap 安装正确,但我似乎无法弄清楚如何使该元素居中。

最佳答案

将 Bootstrap 的 text-center 类与 #fakeButton 上的 col-xs-12 结合使用。

使用:

<div id="fakeButton" class="col-xs-12 text-center">
<label for="files" class="btn btn-primary btn-lg">Select Image</label>
<input id="files" style="visibility:hidden;" type="file">
</div>

代替:

<div id="fakeButton" class="col-sm-4 col-xs-4">
<label for="files" class="btn btn-primary btn-lg">Select Image</label>
<input id="files" style="visibility:hidden;" type="file">
</div>

看看下面的片段:

<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<body>
<div class="navbar-collapse collapse inverse" id="navbar-header">
<div class="container-fluid">
<div class="about">
<h4>text</h4>
<p class="text"></p>
<div class="imgWrapper">
<img id="photo" src="path/to/file"/>
</div>
</div>
<div class="social">
<p>text</p>
</div>
</div>
</div>

<div class="navbar navbar-static-top navbar-dark bg-inverse">
<div class="container-fluid">
<a id="logoutButton" href="logout.php" class="btn btn-lg btn-
primary">Logout</a>
<button id="navbar-button" class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbar-header" aria-controls="navbar-header" aria-expanded="false" aria-label="Toggle navigation"></button>
<a href="#" class="navbar-brand">Media Manager</a>
</div>
</div>

<section class="jumbotron text-xs-center">
<div class="container">
<h1 class="jumbotron-heading">Album list</h1>
<p id="jumbotron-header-text" class="lead text-muted">text</p>
<p>
<div id="fakeButton" class="col-xs-12 text-center">
<label for="files" class="btn btn-primary btn-lg">Select Image</label>
<input id="files" style="visibility:hidden;" type="file">
</div>
</p>
</div>
</section>

希望这对您有所帮助!

关于html - 网站上的居中按钮,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/40636223/

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