Overlay
Basic examples:
<div class="view overlay hm-blue-light">
<img src="https://mdbootstrap.com/wp-content/uploads/2015/10/lbgallery-1.jpg" class="img-responsive" alt="">
<div class="mask">
<div class="verticalcenter">
<p class="white-text text-center">Light overlay</p>
</div>
</div>
</div>
<div class="view overlay hm-red-strong">
<img src="https://mdbootstrap.com/wp-content/uploads/2015/10/lbgallery-1.jpg" class="img-responsive" alt="">
<div class="mask">
<div class="verticalcenter">
<p class="white-text text-center">Strong overlay</p>
</div>
</div>
</div>
<div class="view overlay hm-green-slight">
<img src="https://mdbootstrap.com/wp-content/uploads/2015/10/lbgallery-1.jpg" class="img-responsive" alt="">
<div class="mask">
<div class="verticalcenter">
<p class="white-text text-center">Super light overlay</p>
</div>
</div>
</div>
Changing colors and intensity
You can change the color and intensity of everaly by using one of the following classes:
Ligh overlay
.hm-blue-light
.hm-red-light
.hm-pink-light
.hm-purple-light
.hm-indigo-light
.hm-cyan-light
.hm-teal-light
.hm-green-light
.hm-lime-light
.hm-yellow-light
.hm-orange-light
.hm-brown-light
.hm-grey-light
.hm-bluegrey-light
.hm-black-light
.hm-stylish-light
.hm-white-light
Strong overlay
.hm-blue-strong
.hm-red-strong
.hm-pink-strong
.hm-purple-strong
.hm-indigo-strong
.hm-cyan-strong
.hm-teal-strong
.hm-green-strong
.hm-lime-strong
.hm-yellow-strong
.hm-orange-strong
.hm-brown-strong
.hm-grey-strong
.hm-bluegrey-strong
.hm-black-strong
.hm-stylish-strong
.hm-white-strong
Super Light overlay
.hm-blue-slight
.hm-red-slight
.hm-pink-slight
.hm-purple-slight
.hm-indigo-slight
.hm-cyan-slight
.hm-teal-slight
.hm-green-slight
.hm-lime-light
.hm-yellow-slight
.hm-orange-slight
.hm-brown-slight
.hm-grey-slight
.hm-bluegrey-slight
.hm-black-slight
.hm-stylish-slight
.hm-white-slight
Zoom effect
<div class="view overlay hm-zoom">
<img src="https://mdbootstrap.com/wp-content/uploads/2015/10/lbgallery-1.jpg" class="img-responsive" alt="">
<div class="mask">
<div class="verticalcenter">
<p class="white-text text-center">Zoom effect</p>
</div>
</div>
</div>
Shadow Hover effect
Add class hoverable
to any element to achieve shadow hover effect

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<img src="example.img" class="hoverable">