JSFiddle - React, Tailwind, and code Playground

HTML

<script>
  function toggleVisibility(id) {
   var el = document.getElementById(id);

   if (el.style.visibility=="visible") {
          el.style.visibility="hidden";
     }
     else {
          el.style.visibility="visible";
     }
 }
</script>

<label for="chkemployment">Employment</label>
<input type="checkbox" id="chkemployment" onChange="toggleVisibility('imgemployment');" /><br/>


<label for="chkpopulation">Population</label>
<input type="checkbox" id="chkpopulation"  onChange="toggleVisibility('imgpopulation');" />
<hr />

<img id="imgemployment" src="http://www.gravatar.com/avatar/c0d7be6d99264316574791c1e4ee4cc4?s=32&d=identicon&r=PG"  style="visibility:hidden"/>
<img id="imgpopulation" src="http://www.gravatar.com/avatar/c0d7be6d99264316574791c1e4ee4cc4?s=32&d=identicon&r=PG"  style="visibility:hidden" />