function clickImage(image) { image.classList.add('zoomify'); setTimeout(function() { image.classList.remove('zoomify'); }, 1000); }; window.clickImageA = clickImage; window.clickImageB = clickImage; window.clickImageC = clickImage;
<img class="image" src="http://placehold.it/30x30" onclick="clickImageA(this)"> <img class="image" src="http://placehold.it/30x30" onclick="clickImageB(this)"> <img class="image" src="http://placehold.it/30x30" onclick="clickImageC(this)">
.image { width: 30px; height: 30px; border: 5px solid green; transform: scale(1); transition: all .5s; } .zoomify { transform: scale(2) !important; }