Force image link to download instead of opening in new tab
I've created a bunch of basic PNG icons for staff to download and use in their presentations at the institution I work for. Using custom HTML & CSS I set it up so that the staff can browse the icons and click to download the icon that they want. or at least that was the intention. It did work for a while, but recently when a staff member clicks on an icon it opens in a new tab instead of downloading.
this is the code that I'm curently using:
<div id="image_download" ><a href="myimage.jpg" download target="_blank">
<div class="darken"><p class="darken_text">image title</p></div>
<img src="image_thumb.jpg" alt="Campus" class="image_thumbs"/></a></div>
Any ideas how I would force this to download upon click instead of opening in a new tab?
Preferably using HTML and CSS. I can’t use anything too fancy such as PHP as I’m unable to access the root folder for the institution VLE.
Any help would be much appreciated.

