JSFiddle - React, Tailwind, and code Playground

HTML

<div id="maps">
<div class="map-box"><h2>London &amp; South East</h2><a href="#london"><img src="http://dummyimage.com/100x100/000/fff&text=London" /></a></div>
<div class="map-box"><h2>South West, Ireland and Wales</h2><a href="#south-west"><img src="http://dummyimage.com/100x100/000/fff&text=South+West" /></a></div>    
<div class="map-box"><h2>South Central &amp; Home Counties</h2><a href="#south-central"><img src="http://dummyimage.com/100x100/000/fff&text=South+Central" /></a></div>
<div class="map-box"><h2>North England, Northern Ireland &amp; Scotland</h2><a href="#north"><img src="http://dummyimage.com/100x100/000/fff&text=North" /></a></div>
<div class="map-box"><h2>Midlands</h2><a href="#midlands"><img src="http://dummyimage.com/100x100/000/fff&text=Midlands" /></a></div>
</div>
<br /><br/>
<div id="areas">
<div id="london">
<div>content london 1</div>
<div>content london 2</div>
</div>
<div id="south-west">
<div>content south west 1</div>
<div>content south west 2</div>
</div>
<div id="south-central">
<div>content south central 1</div>
<div>content south central 2</div>
</div>
<div id="north">
<div>content north 1</div>
<div>content north 2</div>
</div>
<div id="midlands">
<div>content midlands 1</div>
<div>content midlands 2</div>
</div>
</div>

JavaScript

$(".map-box a").click(function(e) {
    $("#areas > div").hide();
    $(this.hash).show();
    e.preventDefault();
});
$("#areas > div").not("#london, #london div").hide();