JSFiddle - React, Tailwind, and code Playground

HTML

<select class="course_date_selector applicationSelec">
      <option location="Port Moresby" value="300" style="display:none;" course="285-Port Moresby">Aug-01-2015 </option>
      <option location="Port Moresby" value="200" style="display:none;" course="285-Port Moresby">Aug-05-2015 </option>
      <option location="Location B" value="200" style="display:none;" course="285-Location B">Aug-29-2015 </option>
      <option location="Port Moresby" value="230" style="display:none;" course="284-Port Moresby">Aug-06-2015 </option>
 </select>

CSS

body {
font-family: "Calibri";
}
#inTotal {
	font-weight: bold;
	border-bottom: 2px solid black;
}
.nr {
	font-weight: bold;
}
input {
    border: none;
    background: transparent;
	text-align: center;
}
table, th, td {
    border: 1px solid black;	
    border-collapse: collapse;
}
.Left {
	text-align: left;
	margin-left: 5px;
}

JavaScript

$(function(){
$('.course_date_selector option[course="285-Location B"]').show();
});