title: Bootstrap btn group height
body: <p><a href="https://i.stack.imgur.com/3aefG.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3aefG.jpg" alt=""></a></p>
  
  <p><strong>test.html</strong>       </p>
  
  <pre><code>&lt;html&gt;
  &lt;head&gt;
      &lt;meta charset="utf-8"&gt;
      &lt;meta http-equiv="X-UA-Compatible" content="IE=edge"&gt;
      &lt;meta name="viewport" content="width=device-width, initial-scale=1"&gt;
  
      &lt;link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" /&gt;
      &lt;link rel="stylesheet" type="text/css" href="css/bootstrap-theme.min.css" /&gt;
  
  &lt;/head&gt;
  &lt;body&gt;
      &lt;div class="col-md-12"&gt;
          &lt;table&gt;
              &lt;tr&gt;
                  &lt;div class="col-md-3"&gt;
                      &lt;label&gt;Min: &lt;span data-toggle="tooltip" data-placement="bottom" data-html="true" title="" class="glyphicon glyphicon-info-sign glyphiconFormButton"&gt;&lt;/span&gt;&lt;/label&gt;
                      &lt;div class="input-group"&gt;
                          &lt;span class="input-group-btn"&gt;
                              &lt;button type="button" class="btn btn-danger btn-number"  data-type="minus" data-field="question[nr][text][min]"&gt;
                                  &lt;span class="glyphicon glyphicon-minus"&gt;&lt;/span&gt;
                              &lt;/button&gt;
                          &lt;/span&gt;
                          &lt;input type="text" name="question[nr][text][min]" class="form-control input-number" value="5" min="1" max="50"&gt;
                          &lt;span class="input-group-btn"&gt;
                              &lt;button type="button" class="btn btn-success btn-number" data-type="plus" data-field="question[nr][text][min]"&gt;
                                  &lt;span class="glyphicon glyphicon-plus"&gt;&lt;/span&gt;
                              &lt;/button&gt;
                          &lt;/span&gt;
                      &lt;/div&gt;
                  &lt;/div&gt;
                  &lt;div class="col-md-3"&gt;
                      &lt;label&gt;Max: &lt;span data-toggle="tooltip" data-placement="bottom" data-html="true" title="" class="glyphicon glyphicon-info-sign glyphiconFormButton"&gt;&lt;/span&gt;&lt;/label&gt;
                      &lt;div class="input-group"&gt;
                          &lt;span class="input-group-btn"&gt;
                              &lt;button type="button" class="btn btn-danger btn-number"  data-type="minus" data-field="question[nr][text][max]"&gt;
                                  &lt;span class="glyphicon glyphicon-minus"&gt;&lt;/span&gt;
                              &lt;/button&gt;
                          &lt;/span&gt;
                          &lt;input type="text" name="question[nr][text][max]" class="form-control input-number" value="30" min="10" max="50"&gt;
                          &lt;span class="input-group-btn"&gt;
                              &lt;button type="button" class="btn btn-success btn-number" data-type="plus" data-field="question[nr][text][max]"&gt;
                                  &lt;span class="glyphicon glyphicon-plus"&gt;&lt;/span&gt;
                              &lt;/button&gt;
                          &lt;/span&gt;
                      &lt;/div&gt;
                  &lt;/div&gt;
                  &lt;div class="col-md-1"&gt;
                      &lt;button class="btn btn-danger" type="button" onClick="deleteQuestion()"&gt;Remove&lt;/button&gt;
                  &lt;/div&gt;
              &lt;/tr&gt;
          &lt;/table&gt;
      &lt;/div&gt;
      &lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"&gt;&lt;/script&gt;
      &lt;script src="js/bootstrap.min.js"&gt;&lt;/script&gt;
  &lt;/body&gt;
  </code></pre>
  
  <p>All include I get from there:  <a href="https://github.com/twbs/bootstrap/archive/v3.3.5.zip" rel="nofollow noreferrer">enter link description here</a>
  and folder <strong>dist</strong></p>
  
  <ol>
  <li><strong>Why buttons "-" and "+" are not have the same height as input field</strong>?</li>
  <li><strong>If I can ask second question, how to put 'remove' button to the same line as '-',input,'+'</strong> ?</li>
  </ol>
  
  <p>Update:
  I see that corrent buttons have size 14x20 my is 14x14 but why?</p>