JSFiddle - React, Tailwind, and code Playground

HTML

<body>

	<div class="scan">

		<h3>Summer Session A</h3>

		<!-- <div class="left">
			left
		</div> -->

		<!-- <div class="right">
			right
		</div> -->

		<div class="left">
			<table class="subjects">
				<thead>
					<tr>
			            <th>
			            	<div>Subject Areas</div>
			            	<hr>
			            </th>
			        </tr>
			        <tr>
			    		<th>
			    			<input type="text" class="form-control search"
		        			onkeyup="searchFunction('subjects')" placeholder="Search..." >
			    		</th>
			    	</tr>
				</thead>
			    <tbody>
			    	<tr>
			            <td>Computer Science</td>
			        </tr>
			        <tr>
			            <td>Mathematics</td>
			        </tr>
			        <tr>
			            <td>Engineering</td>
			        </tr>
			        <tr>
			            <td>Computer Science</td>
			        </tr>
			        <tr>
			            <td>Mathematics</td>
			        </tr>
			        <tr>
			            <td>Engineering</td>
			        </tr>
			        <tr>
			            <td>Computer Science</td>
			        </tr>
			        <tr>
			            <td>Mathematics</td>
			        </tr>
			        <tr>
			            <td>Engineering</td>
			        </tr>
               <tr>
			            <td>Computer Science</td>
			        </tr>
			        <tr>
			            <td>Mathematics</td>
			        </tr>
			        <tr>
			            <td>Engineering</td>
			        </tr>
			    	<!-- <select class="form-control" id="exampleSelect1">
				      <option>1</option>
				      <option>2</option>
				      <option>3</option>
				      <option>4</option>
				      <option>5</option>
				    </select> -->
				    <!-- <tr>
				    	<td>
						    <select class="form-control select">
						      <option>1</option>
						      <option>2</option>
						      <option>3</option>
						      <option>4</option>
						      <option>5</option>
						    </select>
						</td>
					</tr> -->

			    </tbody>
			</table>

			<table...

CSS

body {
		background: #6CD3F8;
		/*background: -webkit-linear-gradient(top left, #6CD3F8 0%, #E0F7FE 100%);
		background: linear-gradient(to bottom right, #6CD3F8 0%, #E0F7FE 100%);*/
	}

	h3 {
		color: white;
		text-align: left;
		margin-top: 20px;
	}
	.scan {
		padding: 0% 10%;
	}

  	table { 
	    background: #E0F7FE;
	    border-radius:10px;
	    -moz-border-radius:10px;
	    -webkit-border-radius:10px;
	}
	table td, table td * {
	    vertical-align: top;
	}
  tbody {
     overflow-y scroll;
  }
	th {
		color: #265C82;
		font-family: "Helvetica Neue",Helvetica,Arial,sans-serif;
		font-weight: normal;
		font-size: 17px;
		padding-left: 5px;
		padding-top: 5px;
	}
	td {
		padding-left: 10px;
	}
	::-webkit-input-placeholder {
		color: #00B2F3;
	}
	.search {
		color: #00B2F3;
		border: 0px solid red;
		border-radius: 10px;
		width: calc(100% - 10px);
		height: 35px;
		margin-top: 5px
	}
	.select {
		width: calc(100% - 10px);
	}
	

	.icon {
		width: 20px;
		height: 20px;
		margin: 2px 8px 0px 5px;
		float:left;
	}
	hr {
		border-color: #00B2F3;
		margin: 3px 0;
		width: calc(100% - 5px);
	}

	.subjects{
		width:100%;
		height: 200px;
	}
	.classes {
		width:100%;
	    height: 200px;
	    margin-top: 5px;
	}
	.sections {
		width:100%;
	    height: 405px;
	}
	.left{
		width:50%;
		float: left;
		margin-right: 5px;
		margin-bottom: 3%;
		min-width: 300px;
	}
	.right{
		width: calc(50% - 10px);
		float: left;
		min-width: 300px;
		margin-bottom: 3%;
	}


	.mid {
		width:100%;
		text-align:center;
		float:left;
		position:relative;
	}
	.wrapper{
		width:100%;
		text-align:right;
		float:left;
		position:relative;
	}
	.logo {
		max-width: 30%;
		margin: 10px 0px;
	}

	.links > a {
		color: rgba(255,255,255,0.8);
		font-size: 16px;
		padding: 0px 10px;
	}
	.links{
		/*padding-left: 100px;*/
		padding-bottom: 10px;
	}