Dropdown menu is not closing when clicked outside the menu - css

Question

When I click outside the menu the drop-down menu is not closing. I have tried with functions but I was not able to solve it.
<div onclick="document.getElementsByClassName('custom-menu-cont')[0].classList.toggle('hidden')"; class="custom-menubutton">
<i class="glyphicon glyphicon-th" style="font-size:20px;"></i>
</div>
</div>
<div class="custom-menu-cont hidden">
<div class="custom-menu">
<div class="arrow-up"></div>
<div>
<div class="custom-menu-item">
<a href="http://blog.fossasia.org" target="_blank">
<div class="custom-icon"><img src="{{ url_for('static', filename='blog.png') }}"></div>
<p class="custom-title">Blogs</p></a>
</div>
<hr style="margin-bottom: 10px; margin-top: 10px;">
<div class="custom-menu-item">
<a href="https://susper.com/" target="_blank">
<div class="custom-icon"><img src="{{ url_for('static', filename='susper.png') }}" style="width: 60px;height: 16px;"></div>
<p class="custom-title">Susper</p></a>
</div>
<div class="custom-menu-item">
<a href="https://chat.susi.ai/" target="_blank">
<div class="custom-icon"><img src="{{ url_for('static', filename='susi.png') }}"></div>
<p class="custom-title">Susi</p></a>
</div>
<div class="custom-menu-item">
<a href="https://loklak.org/" target="_blank">
<div class="custom-icon"><img src="{{ url_for('static', filename='loklak.png') }}"></div>
<p class="custom-title">loklak</p></a>
</div>
<div class="custom-menu-item">
<a href="https://phimp.me/" target="_blank">
<div class="custom-icon"><img src="{{ url_for('static', filename='phimp.png') }}"></div>
<p class="custom-title">Phimp.me</p></a>
</div>
<div class="custom-menu-item">
<a href="https://pslab.fossasia.org" target="_blank">
<div class="custom-icon"><img src="{{ url_for('static', filename='Pslab.png') }}"></div>
<p class="custom-title">PS Lab</p></a>
</div>
<hr style="margin: 10px">
<div style="display: flex;justify-content: center;align-items: center; margin: 0 0 -20px 0">
More on labs.fossasia.org
</div>
</div>
</div>
</div>
What changes I have to do to close the menu?
help me to close the dropdown menu.
Thanks in advance

Answer 1

You can use javascript to achieve that.
function hideDiv(){
document.getElementsByClassName('custom-menu-cont')[0].classList.remove('hidden');
}
document.addEventListener("click", hideDiv, false);
You can also remove onclick from <div class="custom-menubutton"> and write in javascript as it is a better convention.
function hideDivStopPropagation(e) {
document.getElementsByClassName('custom-menu-cont')[0].classList.toggle('hidden');
e.stopPropagation();
}
document.getElementsByClassName('custom-menubutton')[0].addEventListener("click", hideDivStopPropagation, false);
The easier way is to use JQuery.
$(document).on('click', function() {
$('.custom-menu-cont').toggleClass('hidden');
});
$('.custom-menubutton').on('click', function(e) {
e.stopPropagation();
$('.custom-menu-cont').toggleClass('hidden');
});
Note: I used e.stopPropagation() because, when you click on the div.custom-menubutton, It means I clicked on document too. So it runs hideDiv function and hides the menu always(Even if you click div to open dropdown). So e.stopPropagation() prevents your click propagating all the way to the document.