<p dir="auto">When using the segmented buttons functionality to create a search box like so:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="&lt;div class=&quot;input-group&quot;&gt;
    &lt;input type=&quot;search&quot; class=&quot;form-control input-lg&quot; placeholder=&quot;Text input&quot;&gt;
    &lt;div class=&quot;input-group-btn&quot;&gt;
      &lt;button type=&quot;button&quot; class=&quot;btn btn-info btn-lg&quot;&gt;
        &lt;span class=&quot;glyphicon glyphicon-search&quot;&gt;&lt;/span&gt;
      &lt;/button&gt;
    &lt;/div&gt;
&lt;/div&gt;"><pre class="notranslate"><code class="notranslate">&lt;div class="input-group"&gt;
    &lt;input type="search" class="form-control input-lg" placeholder="Text input"&gt;
    &lt;div class="input-group-btn"&gt;
      &lt;button type="button" class="btn btn-info btn-lg"&gt;
        &lt;span class="glyphicon glyphicon-search"&gt;&lt;/span&gt;
      &lt;/button&gt;
    &lt;/div&gt;
&lt;/div&gt;
</code></pre></div>
<p dir="auto">The alignment between the input box and the button is not perfect:</p>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://camo.githubusercontent.com/12953048a080ad692f4f0938212354b1e8eb50e1cfb7973c6cd54d4e6cbbd0d7/68747470733a2f2f662e636c6f75642e6769746875622e636f6d2f6173736574732f313839323831392f313237393333322f61303633343865382d326633342d313165332d383335372d6263356637353261636464382e706e67"><img src="https://camo.githubusercontent.com/12953048a080ad692f4f0938212354b1e8eb50e1cfb7973c6cd54d4e6cbbd0d7/68747470733a2f2f662e636c6f75642e6769746875622e636f6d2f6173736574732f313839323831392f313237393333322f61303633343865382d326633342d313165332d383335372d6263356637353261636464382e706e67" alt="testbootstrap3rails" data-canonical-src="https://f.cloud.github.com/assets/1892819/1279332/a06348e8-2f34-11e3-8357-bc5f752acdd8.png" style="max-width: 100%;"></a></p>
<p dir="auto">Sometimes the button height is bigger that the text box, sometimes the opposite, by a few pixels.</p>
<p dir="auto"><a href="http://bootply.com/79215" rel="nofollow">http://bootply.com/79215</a></p>