You could use a label
instead of separate column...
<div class="container">
<div class="row">
<div class="col-md-12">
<div class="row">
<div class="col-md-10">
<label>Some header here</label>
<input type="text" class="input-small">
<input type="submit" value="ok">
</div>
</div>
</div>
</div>
</div>