css - Center button in Bootstrap navbar (outside collapse) -


i have button in navbar is:

  • inline rest of navbar items (i.e. doesn't pushed next line);
  • located outside of collapsed navbar section; and
  • always positioned in center of page screen resolutions (including when right-side of navbar collapsed).

i having particular problems with:

  • centering button; and
  • some of navbar items not working smaller screen resolutions (when navbar collapsed).

below code.

alternative css tried:

.navbar-button {     position: absolute;     left: 0;     width: 100%;     text-align: center;     white-space: nowrap; }

but caused of other navbar links not work. subsequently tried make use of z-index, didn't seem work. 

body {    padding-top: 50px;    padding-bottom: 20px;  }  .section {    margin-bottom: 30cm;  }  .navbar-button {    display: inline-block;    text-align: center;  }
<!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">      <title>test</title>      <!-- bootstrap core css -->    <link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">    </head>    <body>    <nav class="navbar navbar-default navbar-fixed-top">      <div class="container">        <div class="navbar-header">          <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">            <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="#brand">brand</a>          <div class="navbar-button">            <button type="button" class="btn btn-primary navbar-btn">button</button>          </div>        </div>          <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">          <ul class="nav navbar-nav navbar-right">            <li class="text-center">              <a href="#link1">link-1</a>            </li>            <li class="text-center">              <a href="#link2">link-2</a>            </li>            <li class="text-center">              <a href="#link3">link-3</a>            </li>          </ul>        </div>      </div>    </nav>      <div class="container">      <div class="row">        <div class="section" id="brand">          <h3>top</h3>        </div>      </div>      <div class="row">        <div class="section" id="link1">          <h3>section-1</h3>        </div>      </div>      <div class="row">        <div class="section" id="link2">          <h3>section-2</h3>        </div>      </div>      <div class="row">        <div class="section" id="link3">          <h3>section-3</h3>        </div>      </div>    </div>    </body>    </html>

you can use position : absolute don't apply 100% width it's covering links/toggle button. can apply .navbar-btn directly button inside of outer div.

example css:

.button-center {   position: absolute;   left: 50%;   transform: translatex(-50%); }

working example:

body {    padding-top: 50px;    padding-bottom: 20px;  }  .section {    margin-bottom: 30cm;  }  .button-center {    position: absolute;    left: 50%;    transform: translatex(-50%);  }
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />  <nav class="navbar navbar-default navbar-fixed-top">    <div class="container">        <div class="navbar-header">        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">          <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="https://www.github.com" target="_blank">brand</a>        <button type="button" class="btn btn-primary navbar-btn button-center">button</button>      </div>        <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">        <ul class="nav navbar-nav navbar-right">          <li class="text-center">            <a href="https://www.github.com" target="_blank">test link</a>          </li>          <li class="text-center">            <a href="#link2">link-2</a>          </li>          <li class="text-center">            <a href="#link3">link-3</a>          </li>        </ul>      </div>      </div>  </nav>    <div class="container">    <div class="row">      <div class="section" id="brand">        <h3>top</h3>      </div>    </div>    <div class="row">      <div class="section" id="link1">        <h3>section-1</h3>      </div>    </div>    <div class="row">      <div class="section" id="link2">        <h3>section-2</h3>      </div>    </div>    <div class="row">      <div class="section" id="link3">        <h3>section-3</h3>      </div>    </div>  </div>  <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>


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