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---
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layout: default
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title: Migrating to v3.x
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slug: migration
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lead: "Guidance on how to upgrade from Bootstrap v2.x to v3.x with emphasis on major changes, what's new, and what's been removed."
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---
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<!-- Migration
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================================================== -->
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<div class="bs-docs-section">
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  <h1 class="page-header">Migrating from 2.x to 3.0</h1>
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  <p class="lead">Bootstrap 3 is not backwards compatible with v2.x. Use this section as a general guide to upgrading from v2.x to v3.0. For a broader overview, see <a href="http://blog.getbootstrap.com/2013/08/19/bootstrap-3-released/">what's new</a> in the v3.0 release announcement.</p>
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  <h2 id="classes">Major class changes</h2>
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  <p>This table shows the style changes between v2.x and v3.0.</p>
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  <div class="table-responsive">
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    <table class="table table-bordered table-striped">
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      <thead>
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        <tr>
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          <th>Bootstrap 2.x</th>
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          <th>Bootstrap 3.0</th>
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        </tr>
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      </thead>
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      <tbody>
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        <tr>
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          <td><code>.row-fluid</code></td>
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          <td><code>.row</code></td>
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        </tr>
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        <tr>
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          <td><code>.span*</code></td>
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          <td><code>.col-md-*</code></td>
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        </tr>
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        <tr>
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          <td><code>.offset*</code></td>
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          <td><code>.col-md-offset-*</code></td>
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        </tr>
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        <tr>
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          <td><code>.brand</code></td>
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          <td><code>.navbar-brand</code></td>
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        </tr>
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        <tr>
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          <td><code>.navbar .nav</code></td>
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          <td><code>.navbar-nav</code></td>
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        </tr>
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        <tr>
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          <td><code>.nav-collapse</code></td>
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          <td><code>.navbar-collapse</code></td>
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        </tr>
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        <tr>
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          <td><code>.nav-toggle</code></td>
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          <td><code>.navbar-toggle</code></td>
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        </tr>
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        <tr>
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          <td><code>.btn-navbar</code></td>
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          <td><code>.navbar-btn</code></td>
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        </tr>
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        <tr>
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          <td><code>.hero-unit</code></td>
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          <td><code>.jumbotron</code></td>
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        </tr>
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        <tr>
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          <td><code>.icon-*</code></td>
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          <td><code>.glyphicon .glyphicon-*</code></td>
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        </tr>
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        <tr>
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          <td><code>.btn</code></td>
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          <td><code>.btn .btn-default</code></td>
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        </tr>