JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http:////netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css">
<script src="http://netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<div class="container">
<div class="row">
	<a href="#" id="username" data-type="text" data-pk="1" data-url="/post" data-title="Enter username">superuser</a>
</div>
</div>

CSS

/*! X-editable - v1.5.0 
* In-place editing with Twitter Bootstrap, jQuery UI or pure jQuery
* http://github.com/vitalets/x-editable
* Copyright (c) 2013 Vitaliy Potapov; Licensed MIT */
.editableform {
    margin-bottom: 0; /* overwrites bootstrap margin */
}

.editableform .control-group {
    margin-bottom: 0; /* overwrites bootstrap margin */
    white-space: nowrap; /* prevent wrapping buttons on new line */
    line-height: 20px; /* overwriting bootstrap line-height. See #133 */
}

.editable-buttons {
   display: inline-block; /* should be inline to take effect of parent's white-space: nowrap */
   vertical-align: top;
   margin-left: 7px;
   /* inline-block emulation for IE7*/
   zoom: 1; 
   *display: inline;
}

.editable-buttons.editable-buttons-bottom {
   display: block; 
   margin-top: 7px;
   margin-left: 0;
}

.editable-input {
    vertical-align: top; 
    display: inline-block; /* should be inline to take effect of parent's white-space: nowrap */
    width: auto; /* bootstrap-responsive has width: 100% that breakes layout */
    white-space: normal; /* reset white-space decalred in parent*/
   /* display-inline emulation for IE7*/
   zoom: 1; 
   *display: inline;   
}

.editable-buttons .editable-cancel {
   margin-left: 7px; 
}

/*for jquery-ui buttons need set height to look more pretty*/
.editable-buttons button.ui-button-icon-only {
   height: 24px; 
   width: 30px;
}

.editableform-loading {
    background: url('../img/loading.gif') center center no-repeat;  
    height: 25px;
    width: auto; 
    min-width: 25px; 
}

.editable-inline .editableform-loading {
    background-position: left 5px;      
}

 .editable-error-block {
    max-width: 300px;
    margin: 5px 0 0 0;
    width: auto;
    white-space: normal;
}

/*add padding for jquery ui*/
.editable-error-block.ui-state-error {
    padding: 3px;  
}  

.editable-error {
   color: red;  
}

/* ---- For specific types ---- */

.editableform .editable-date {
    padding: 0; 
    margin:...

JavaScript

/*! X-editable - v1.5.0 
* In-place editing with Twitter Bootstrap, jQuery UI or pure jQuery
* http://github.com/vitalets/x-editable
* Copyright (c) 2013 Vitaliy Potapov; Licensed MIT */
!function(a){"use strict";var b=function(b,c){this.options=a.extend({},a.fn.editableform.defaults,c),this.$div=a(b),this.options.scope||(this.options.scope=this)};b.prototype={constructor:b,initInput:function(){this.input=this.options.input,this.value=this.input.str2value(this.options.value),this.input.prerender()},initTemplate:function(){this.$form=a(a.fn.editableform.template)},initButtons:function(){var b=this.$form.find(".editable-buttons");b.append(a.fn.editableform.buttons),"bottom"===this.options.showbuttons&&b.addClass("editable-buttons-bottom")},render:function(){this.$loading=a(a.fn.editableform.loading),this.$div.empty().append(this.$loading),this.initTemplate(),this.options.showbuttons?this.initButtons():this.$form.find(".editable-buttons").remove(),this.showLoading(),this.isSaving=!1,this.$div.triggerHandler("rendering"),this.initInput(),this.$form.find("div.editable-input").append(this.input.$tpl),this.$div.append(this.$form),a.when(this.input.render()).then(a.proxy(function(){if(this.options.showbuttons||this.input.autosubmit(),this.$form.find(".editable-cancel").click(a.proxy(this.cancel,this)),this.input.error)this.error(this.input.error),this.$form.find(".editable-submit").attr("disabled",!0),this.input.$input.attr("disabled",!0),this.$form.submit(function(a){a.preventDefault()});else{this.error(!1),this.input.$input.removeAttr("disabled"),this.$form.find(".editable-submit").removeAttr("disabled");var b=null===this.value||void 0===this.value||""===this.value?this.options.defaultValue:this.value;this.input.value2input(b),this.$form.submit(a.proxy(this.submit,this))}this.$div.triggerHandler("rendered"),this.showForm(),this.input.postrender&&this.input.postrender()},this))},cancel:function(){this.$div.triggerHandler("cancel")},showLoading:function(){var...