JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css">
<div class="input-group">
  <span class="input-group-addon">$</span>
    <input type="text" class="form-control" placeholder="Price"/>
</div>

CSS

.input-group-addon
{
    background-color:#FFF;
}
.input-group .input-group-addon + .form-control
{
    border-left:none;
}