JSFiddle - React, Tailwind, and code Playground

HTML

<div class="col-md-12 col-lg-12" id="main">
		<div class="panel with-nav-tabs panel-default">
			<div class="panel-heading">
				<ul class="nav nav-tabs">
					<li class="active"><a href="#tab1default" data-toggle="tab">Apex Editor</a></li>
				</ul>
			</div>
			<div class="panel-body">
				<div class="tab-content">
					<div class="tab-pane fade in active" id="tab1default">
						<div>
							<input type="text" name="apexClass" id="autocomplete"
								   placeholder="Type the name of the Apex class you want to edit"/>
						</div>
						<img src="../img/ajax-loader.gif" id="loaderImage" style='display:none'>
						<div align="left">
							<article>
								<textarea ng-model="apexClassWrapper.body" id="apexBody" name="apexBody" readonly="true">{{apexClassWrapper.body}}</textarea>
							</article>
						</div>
						<button type="button" class="btn btn-primary" id="saveBtn" ng-click="postdata(apexClassWrapper)">Save</button>
						<button type="button" class="btn btn-primary" id="cleanBtn" ng-click="replaceSpaceWithTabs()">Clean Up</button>
					</div>

			
				</div>
			</div>
		</div>
	</div>

CSS

/*-------------------------
	Simple reset
--------------------------*/


*{
	margin:0;
	padding:0;
}


/*-------------------------
	General Styles
--------------------------*/


body{
	font:15px/1.3 'Open Sans', sans-serif;
	color: #5e5b64;
}

a, a:visited {
	outline:none;
	color:#389dc1;
}

a:hover{
	text-decoration:none;
}

section, footer, header, aside, nav{
	display: block;
}


/*-------------------------
	The order form
--------------------------*/


.panel-body {
	background-color: white;
	border-radius: 0px;
	box-shadow: 0 1px 1px #ccc;
/*	width: 400px;*/
/*
	padding: 35px 60px;
	margin: 80px auto;
*/
}

.errorHeader{
	color:#fff;
	font-size:64px;
	font-family:'Cookie', cursive;
	font-weight: normal;
	line-height:1;
	text-shadow:0 3px 0 rgba(0,0,0,0.1);
    margin-top: 0;
    background-color: #464242
}

.panel-body ul{
	list-style:none;
	color:#fff;
	font-size:20px;
	font-weight:bold;
	text-align: left;
/*	margin:20px 35px 15px;*/
}

.panel-body ul li{
	padding:20px 30px;
	background-color:#9c8787;
	margin-bottom:8px;
	box-shadow:0 1px 1px rgba(0,0,0,0.1);
	cursor:pointer;
}

.panel-body ul li span{
	float:right;
}

.panel-body ul .eachClassCell {
    max-width: 30%;
}
.panel-body ul li.active{
	background-color:#8ec16d;
}

div.total{
	border-top:1px solid rgba(255,255,255,0.5);
	padding:15px 30px;
	font-size:20px;
	font-weight:bold;
	text-align: left;
	color:#fff;
}

div.total span{
	float:right;
}
.eachClassCell{
    margin-right: 20px;
    margin-left: 20px;
    margin-bottom: 20px;
}
.selectDate{
	background-color: #ddd;
	cursor: default;
	padding: 5px;
	border-style: solid;
	border-width: 1px;
	border-color: #ccc;
	box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
	color: rgba(0,0,0,0.75);
	box-sizing: border-box;
	transition: box-shadow 0.45s,border-color 0.45s ease-in-out;
}
.classNameLabel{
    width: 320px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.errorMeter{
    display: inline-block;
    width: 30px;
   ...