Toggle Collapse CSS issue
<p>I am having an issue in CSS where I am not able to re-collapse my mobile menu after it's initially been opened. I can't seem to track the issue down.</p>

<p>You can inspect the CSS and function here: <a href="http://www.whatshoulditraintoday.com/" rel="nofollow">http://www.whatshoulditraintoday.com/</a></p>

<p>Could someone please provide a valid explaination of what's going on here so that I may learn and fix this?</p>

<p>Thank you</p>