what is the code problem? please see in jsfiddle.
1. inline help not show in middle.
2. when i scroll window, inline-help margin not true.
https://i.stack.imgur.com/8oCG5.jpg
<form class="well ">
<div class="controls controls-row ">
<input type="text" placeholder="Name" class="span5 ">
<span class="help-inline">Please Enter Small Name.</span>
</div>
<div class="controls controls-row">
<input type="text" placeholder=".span5" class="span5">
</div>
<div class="controls controls-row">
<input type="text" placeholder=".span4" class="span4">
<input type="text" placeholder=".span1" class="span1">
</div>
<div class="controls controls-row">
<input type="text" placeholder=".span3" class="span3">
<input type="text" placeholder=".span2" class="span2">
</div>
<div class="controls controls-row">
<input type="text" placeholder=".span2" class="span2">
<input type="text" placeholder=".span3" class="span3">
</div>
<div class="controls controls-row">
<input type="text" placeholder=".span1" class="span1">
<input type="text" placeholder=".span4" class="span4">
</div>
</form>
you are using a class in the input (class=”span5″ that is too big to have the inline help, so i advise you to have a regular size to the inline help works.
i think this is what you want