Settings
Demo
Code
<form role="form" class="form-horizontal" class="form-inline">
<div class="form-group has-feedback has-success has-warning has-error has-feedback-left form-group-sm form-group-lg">
<label class="control-label sr-only col-sm-2">Username</label>
<div class=" col-sm-10 col-sm-12">
<div class="inline-feedback">
<input type="text" class="form-control input-sm input-lg" placeholder="Username" />
<i class="form-control-feedback glyphicon glyphicon-user fa fa-user"></i>
</div>
</div>
</form>