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HTML 

              
                
<div class="wrapper">
	<div class="container">
		<h1>CSS Image Zoom Grid</h1>
		
		<div class="image-zoom-container">
			<div class="zoom-container">
				<a href="#">
					<span class="zoom-caption">
						<h3>Costa Rica</h3>
					</span>
					<img src="http://lorempixel.com/g/767/510/" />
				</a>
			</div>
			<div class="zoom-container">
				<a href="#">
					<span class="zoom-caption">
						<h3>Bavaria</h3>
					</span>
					<img src="http://lorempixel.com/g/767/510/" />
				</a>
			</div>
			<div class="zoom-container">
				<a href="#">
					<span class="zoom-caption">
						<h3>Firenza</h3>
					</span>
					<img src="http://lorempixel.com/g/767/510/" />
				</a>
			</div>
			<div class="zoom-container">
				<a href="#">
					<span class="zoom-caption">
						<h3>Zermatt</h3>
					</span>
					<img src="http://lorempixel.com/g/767/510/" />
				</a>
			</div>
			<div class="zoom-container">
				<a href="#">
					<span class="zoom-caption">
						<h3>Cinque Terre</h3>
					</span>
					<img src="http://lorempixel.com/g/767/510/" />
				</a>
			</div>
			<div class="zoom-container">
				<a href="#">
					<span class="zoom-caption">
						<h3>Vincenza</h3>
					</span>
					<img src="http://lorempixel.com/g/767/510/" />
				</a>
			</div>
			<div class="zoom-container">
				<a href="#">
					<span class="zoom-caption">
						<h3>Puerta Vallarta</h3>
					</span>
					<img src="http://lorempixel.com/g/767/510/" />
				</a>
			</div>
			<div class="zoom-container">
				<a href="#">
					<span class="zoom-caption">
						<h3>Munich</h3>
					</span>
					<img src="http://lorempixel.com/g/767/510/" />
				</a>
			</div>
			<div class="zoom-container">
				<a href="#">
					<span class="zoom-caption">
						<h3>Roma</h3>
					</span>
					<img src="http://lorempixel.com/g/767/510/" />
				</a>
			</div>
		</div>
		<!--/.image-zoom-container-->
		
		<hr />
		
		<p class="centered">Demo by <a href="http://alijafarian.com">Ali Jafarian</a></p>
	</div>
	<!--/.container-->
</div>
!

CSS 

              
                * {
	margin: 0;
	padding: 0;
}
body {
	background: url(../images/texture_subtle_grunge.jpg);
	font-family: 'Helvetica Neue', arial, sans-serif;
	font-weight: 200;
}

h1 {
	font-family: 'font-family: 'Source Sans Pro', sans-serif;', sans-serif;
	font-size: 4em;
	font-weight: 900;
	letter-spacing: -3px;
	margin: 0 0 20px;
	text-align: center;
	text-shadow: 1px 1px 0 #fff, 2px 2px 0 #bbb;
}
hr {
	border-top: 1px solid #ccc;
	border-bottom: 1px solid #fff;
	margin: 25px 0;
	clear: both;
}
.centered {
	text-align: center;
}
.wrapper {
	width: 100%;
	padding: 30px 0;
}
.container {
	width: 1200px;
	margin: 0 auto;
}

/* ---------- Zoom container ---------- */
.image-zoom-container {
	list-style: none;
	font-size: 0px;
}
.zoom-container {
	position: relative;
	overflow: hidden;
	display: inline-block;
	width: 33.33%; /* this value + 2 should = 33% */
	font-size: 16px;
	font-size: 1rem;
	border: 1px solid #fff;
	vertical-align: top;
	box-sizing: border-box;
	-moz-box-sizing: border-box;
	-webkit-box-sizing: border-box;
}
.zoom-container img {
	display: block;
	width: 100%;
	height: auto;
	-webkit-transition: all .5s ease; /* Safari and Chrome */
    -moz-transition: all .5s ease; /* Firefox */
    -ms-transition: all .5s ease; /* IE 9 */
    -o-transition: all .5s ease; /* Opera */
    transition: all .5s ease;
}
.zoom-container .zoom-caption {
	position: absolute;
	top: 0;
	right: 0;
	bottom: 0;
	left: 0;
	z-index: 10;
	background: rgba(0, 0, 0, .5);
	-webkit-transition: all .5s ease; /* Safari and Chrome */
    -moz-transition: all .5s ease; /* Firefox */
    -ms-transition: all .5s ease; /* IE 9 */
    -o-transition: all .5s ease; /* Opera */
    transition: all .5s ease;
}
.zoom-container .zoom-caption h3 {
	display: block;
	text-align: center;
	font-family: 'Source Sans Pro', sans-serif;
	font-size: 1.5em;
	font-weight: 900;
	letter-spacing: -1px;
	text-transform: uppercase;
	color: #fff;
	margin: 23% 0 0;
	padding: 10px 0;
	border-top: 5px solid rgba(255, 255, 255, .15);
	border-bottom: 5px solid rgba(255, 255, 255, .15);
}
.zoom-container:hover img {
	-webkit-transform:scale(1.25); /* Safari and Chrome */
    -moz-transform:scale(1.25); /* Firefox */
    -ms-transform:scale(1.25); /* IE 9 */
    -o-transform:scale(1.25); /* Opera */
     transform:scale(1.25);
}
.zoom-container:hover .zoom-caption {
	background: none;
}

@media (max-width: 1199px) {
	.container {
		width: auto;
		padding: 0 10px;
	}
}

@media (max-width: 767px) {

	.zoom-container {
		width: 50%;
	}

}

@media (max-width: 480px) {
	
	.zoom-container {
		width: 100%;
	}
	
}
!

JS
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