JSFiddle - React, Tailwind, and code Playground
HTML
<div class="imgContainer">
<div>
<a href="javascript:void(viewer.show(<?php echo $i ?>))" title="Badkamer" class="none">
<img src="http://www.letsgomobile.org/images/reviews/0102/samsung-camera-phone-test-pictures.jpg"> </a>
<a href="#" onclick="toevoegenFavo(); return false" title="Klik om aan Favorieten toe te voegen"></a>
</div>
</div>
<div class="imgContainer">
<div>
<a href="javascript:void(viewer.show(<?php echo $i ?>))" title="Badkamer" class="none">
<img src="http://www.letsgomobile.org/images/reviews/0102/samsung-camera-phone-test-pictures.jpg"></a>
<a href="#" onclick="toevoegenFavo(); return false" title="Klik om aan Favorieten toe te voegen"></a>
</div>
</div>
<div class="imgContainer">
<div>
<a href="javascript:void(viewer.show(<?php echo $i ?>))" title="Badkamer" class="none">
<img src="http://www.letsgomobile.org/images/reviews/0102/samsung-camera-phone-test-pictures.jpg">
</a>
<a href="#" onclick="toevoegenFavo(); return false" title="Klik om aan Favorieten toe te voegen"></a>
</div>
</div>
CSS
.imgContainer {
position: relative;
float:left;
width:97%;
margin-top:20px;
background-color:#c2c0c0;
padding-bottom:20px;
}
.imgContainer div {
float:left;
}
.imgContainer img {
height:175px;
min-height:175px;
max-width:96%;
max-height:96%;
}
.imgContainer a {
position: absolute;
left: 0;
top: 0;
width: 25px;
height: 25px;
display: block;
}
.imgContainer div:hover a,
.imgContainer div:focus a {
background: url(http://bliksekaters.nl/tests/images/maak-favoriet.png);
}