Bootstrap .pull-right doesn't affect .navbar-search

Question

I would like to use the .navbar-search class in Boostrap, but I would like to use it with .pull-right. However .pull-right doesn't seem to affect the search bar as .navbar-search has a float: left in it and that seems to override .navbar-search.

Is there an obvious way to make it work with Bootstrap or do I need to just add custom css for a float right nab search?

HTML (Generated from HAML in a rails app)

<form accept-charset="UTF-8" action="/search" class="navbar-search pull-right" method="get">
  <div style="margin:0;padding:0;display:inline">
    <input name="utf8" type="hidden" value="✓">
  </div>
  <input class="search-query" id="q" name="q" placeholder="Search" type="text">
 </form>

Generated CSS:

.navbar-search {
  position: relative;
  float: left;
  margin-top: 6px;
  margin-bottom: 0;
}
bootstrap.css:236

.pull-right {
  float: right;
}
bootstrap.css:525

Full Nav (Generated from HAML):

<div class="navbar navbar-fixed-top">
  <div class="navbar-inner">
    <div class="container">
      ...
      <form accept-charset="UTF-8" action="/search" class="pull-right navbar-search" method="get"><div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="✓"></div>
                <input class="search-query" id="q" name="q" placeholder="Search" type="text">
      </form>
    </div>
  </div>
</div>

Answer 1

After testing out the class with the most current bootstrap.css sheet, we found that the .pull-right class was not available under the older version of the bootstrap so updating that fixed the issue.

Demo of class being used with the latest bootstrap sheet.