To place thumbnails, we need to compare their different effects to choose the best one for our website. In this code, this is done and different animations are displayed during the hover. All these images of the mouse cursor on them show the title of the image below the image. The photos in this triple code are placed next to each other, but you can change them according to your taste.


HTML
<!-- This script got from www.devanswer.com -->
<link rel='stylesheet' href='https://fonts.googleapis.com/css?family=Open+Sans:400,300'>
<h1>CSS Image Hover Effects</h1>
<h2>No Effect</h2>
<div class="column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo01">1. Zoom In #1</h2>
<div class="hover01 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo02">2. Zoom In #2</h2>
<div class="hover02 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo03">3. Zoom Out #1</h2>
<div class="hover03 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo04">4. Zoom Out #2</h2>
<div class="hover04 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo05">5. Slide</h2>
<div class="hover05 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo06">6. Rotate<span>(+Zoom Out)</span></h2>
<div class="hover06 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo07">7. Blur</h2>
<div class="hover07 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo08">8. Gray Scale</h2>
<div class="hover08 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo09">9. Sepia</h2>
<div class="hover09 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo10">10. Blur + Gray Scale</h2>
<div class="hover10 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo11">11. Opacity #1</h2>
<div class="hover11 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo12">12. Opacity #2</h2>
<div class="hover12 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo13">13. Flashing</h2>
<div class="hover13 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo14">14. Shine</h2>
<div class="hover14 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div>
<h2 id="demo15">15. Circle</h2>
<div class="hover15 column">
  <div>
    <figure><img src="https://picsum.photos/300/200?image=244" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=1024" /></figure>
    <span>Hover</span>
  </div>
  <div>
    <figure><img src="https://picsum.photos/300/200?image=611" /></figure>
    <span>Hover</span>
  </div>
</div><div id="bcl"><a style="font-size:8pt;text-decoration:none;" href="http://www.devanswer.com">Developers Answer</a></div>
                        

CSS
body {
	color: #333;
	font-family: 'Open Sans', sans-serif;
	font-weight: 300;
}
h1,
h1+p {
	margin: 30px 15px 0;
	font-weight: 300;
}
h1+p a {
	color: #333;
}
h1+p a:hover {
	text-decoration: none;
}
h2 {
	margin: 60px 15px 0;
	padding: 0;
	font-weight: 300;
}
h2 span {
	margin-left: 1em;
	color: #aaa;
	font-size: 85%;
}
.column {
	margin: 15px 15px 0;
	padding: 0;
}
.column:last-child {
	padding-bottom: 60px;
}
.column::after {
	content: '';
	clear: both;
	display: block;
}
.column div {
	position: relative;
	float: left;
	width: 300px;
	height: 200px;
	margin: 0 0 0 25px;
	padding: 0;
}
.column div:first-child {
	margin-left: 0;
}
.column div span {
	position: absolute;
	bottom: -20px;
	left: 0;
	z-index: -1;
	display: block;
	width: 300px;
	margin: 0;
	padding: 0;
	color: #444;
	font-size: 18px;
	text-decoration: none;
	text-align: center;
	-webkit-transition: .3s ease-in-out;
	transition: .3s ease-in-out;
	opacity: 0;
}
figure {
	width: 300px;
	height: 200px;
	margin: 0;
	padding: 0;
	background: #fff;
	overflow: hidden;
}
figure:hover+span {
	bottom: -36px;
	opacity: 1;
}
/* Zoom In #1 */
.hover01 figure img {
	-webkit-transform: scale(1);
	transform: scale(1);
	-webkit-transition: .3s ease-in-out;
	transition: .3s ease-in-out;
}
.hover01 figure:hover img {
	-webkit-transform: scale(1.3);
	transform: scale(1.3);
}
/* Zoom In #2 */
.hover02 figure img {
	width: 300px;
	height: auto;
	-webkit-transition: .3s ease-in-out;
	transition: .3s ease-in-out;
}
.hover02 figure:hover img {
	width: 350px;
}
/* Zoom Out #1 */
.hover03 figure img {
	-webkit-transform: scale(1.5);
	transform: scale(1.5);
	-webkit-transition: .3s ease-in-out;
	transition: .3s ease-in-out;
}
.hover03 figure:hover img {
	-webkit-transform: scale(1);
	transform: scale(1);
}
/* Zoom Out #2 */
.hover04 figure img {
	width: 400px;
	height: auto;
	-webkit-transition: .3s ease-in-out;
	transition: .3s ease-in-out;
}
.hover04 figure:hover img {
	width: 300px;
}
/* Slide */
.hover05 figure img {
	margin-left: 30px;
	-webkit-transform: scale(1.5);
	transform: scale(1.5);
	-webkit-transition: .3s ease-in-out;
	transition: .3s ease-in-out;
}
.hover05 figure:hover img {
	margin-left: 0;
}
/* Rotate */
.hover06 figure img {
	-webkit-transform: rotate(15deg) scale(1.4);
	transform: rotate(15deg) scale(1.4);
	-webkit-transition: .3s ease-in-out;
	transition: .3s ease-in-out;
}
.hover06 figure:hover img {
	-webkit-transform: rotate(0) scale(1);
	transform: rotate(0) scale(1);
}
/* Blur */
.hover07 figure img {
	-webkit-filter: blur(3px);
	filter: blur(3px);
	-webkit-transition: .3s ease-in-out;
	transition: .3s ease-in-out;
}
.hover07 figure:hover img {
	-webkit-filter: blur(0);
	filter: blur(0);
}
/* Gray Scale */
.hover08 figure img {
	-webkit-filter: grayscale(100%);
	filter: grayscale(100%);
	-webkit-transition: .3s ease-in-out;
	transition: .3s ease-in-out;
}
.hover08 figure:hover img {
	-webkit-filter: grayscale(0);
	filter: grayscale(0);
}
/* Sepia */
.hover09 figure img {
	-webkit-filter: sepia(100%);
	filter: sepia(100%);
	-webkit-transition: .3s ease-in-out;
	transition: .3s ease-in-out;
}
.hover09 figure:hover img {
	-webkit-filter: sepia(0);
	filter: sepia(0);
}
/* Blur + Gray Scale */
.hover10 figure img {
	-webkit-filter: grayscale(0) blur(0);
	filter: grayscale(0) blur(0);
	-webkit-transition: .3s ease-in-out;
	transition: .3s ease-in-out;
}
.hover10 figure:hover img {
	-webkit-filter: grayscale(100%) blur(3px);
	filter: grayscale(100%) blur(3px);
}
/* Opacity #1 */
.hover11 figure img {
	opacity: 1;
	-webkit-transition: .3s ease-in-out;
	transition: .3s ease-in-out;
}
.hover11 figure:hover img {
	opacity: .5;
}
/* Opacity #2 */
.hover12 figure {
	background: #1abc9c;
}
.hover12 figure img {
	opacity: 1;
	-webkit-transition: .3s ease-in-out;
	transition: .3s ease-in-out;
}
.hover12 figure:hover img {
	opacity: .5;
}
/* Flashing */
.hover13 figure:hover img {
	opacity: 1;
	-webkit-animation: flash 1.5s;
	animation: flash 1.5s;
}
@-webkit-keyframes flash {
	0% {
		opacity: .4;
	}
	100% {
		opacity: 1;
	}
}
@keyframes flash {
	0% {
		opacity: .4;
	}
	100% {
		opacity: 1;
	}
}
/* Shine */
.hover14 figure {
	position: relative;
}
.hover14 figure::before {
	position: absolute;
	top: 0;
	left: -75%;
	z-index: 2;
	display: block;
	content: '';
	width: 50%;
	height: 100%;
	background: -webkit-linear-gradient(left, rgba(255,255,255,0) 0%, rgba(255,255,255,.3) 100%);
	background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,.3) 100%);
	-webkit-transform: skewX(-25deg);
	transform: skewX(-25deg);
}
.hover14 figure:hover::before {
	-webkit-animation: shine .75s;
	animation: shine .75s;
}
@-webkit-keyframes shine {
	100% {
		left: 125%;
	}
}
@keyframes shine {
	100% {
		left: 125%;
	}
}
/* Circle */
.hover15 figure {
	position: relative;
}
.hover15 figure::before {
	position: absolute;
	top: 50%;
	left: 50%;
	z-index: 2;
	display: block;
	content: '';
	width: 0;
	height: 0;
	background: rgba(255,255,255,.2);
	border-radius: 100%;
	-webkit-transform: translate(-50%, -50%);
	transform: translate(-50%, -50%);
	opacity: 0;
}
.hover15 figure:hover::before {
	-webkit-animation: circle .75s;
	animation: circle .75s;
}
@-webkit-keyframes circle {
	0% {
		opacity: 1;
	}
	40% {
		opacity: 1;
	}
	100% {
		width: 200%;
		height: 200%;
		opacity: 0;
	}
}
@keyframes circle {
	0% {
		opacity: 1;
	}
	40% {
		opacity: 1;
	}
	100% {
		width: 200%;
		height: 200%;
		opacity: 0;
	}
}