CSS3 实现的缩略图悬停效果

实现效果

实现代码

html

<header>
		<h1>thumbnail hover effect with <em>css3</em></h1>
	</header>
	<div class="wrapper">
		<div class="gallery">
			<ul>
				<li><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/53819/9.png"></li>
				<li><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/53819/2.png"></li>
				<li><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/53819/3.png"></li>
				<li><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/53819/1.png"></li>
				<li><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/53819/4.png"></li>
				<li><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/53819/5.png"></li>
				<li><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/53819/7.png"></li>
				<li><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/53819/8.png"></li>
				<li><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/53819/6.png"></li>
			</ul>
		</div>
		<p class="attribution">images featured in this demo are the works of <a href="https://d.hatena.ne.jp/koochinko">mernan behairi</a>. inspired by an old post of <a href="https://twitter.com/sohtanaka">@sohtanaka</a>. it originally uses jquery. access original <a href="https://web.archive.org/web/20110323065449/http://www.sohtanaka.com/web-design/fancy-thumbnail-hover-effect-w-jquery/">tutorial</a> and <a href="https://web.archive.org/web/20110323065952/http://www.sohtanaka.com/web-design/examples/image-zoom/">demo</a>.</p>
	</div>

css3

@import url(https://fonts.googleapis.com/css?family=roboto+condensed:700);

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
	margin: 0;
	padding: 0;
	border: 0;
	font-size: 100%;
	font: inherit;
	vertical-align: baseline;
}

body {
	background-color: #f2f2f2;
}

header {
	width: 100%;
	background-color: #77cdb4;
	text-align: center;
}

h1 {
	font-family: 'roboto condensed', sans-serif;
	color: #fff;
	font-size: 2.3em;
}

em {
	color: #232027;
}

.wrapper {
	width: 40%;
	margin: 40px auto;
}

div.gallery {
	margin-top: 30px;
}

div.gallery ul {
	list-style-type: none;
	margin-left: 35px;
}

/* animation */
div.gallery ul li, div.gallery li img {
	-webkit-transition: all 0.1s ease-in-out;
  	-moz-transition: all 0.1s ease-in-out;
  	-o-transition: all 0.1s ease-in-out;
  	transition: all 0.1s ease-in-out;
}

div.gallery ul li {
	position: relative;
	float: left;
	width: 130px;
	height: 130px;
	margin: 5px;
	padding: 5px;
	z-index: 0;
}

/* make sure z-index is higher on hover */
/* ensure that hover image overlapped the others */
div.gallery ul li:hover {
	z-index: 5;
}

/* image is position nicely under li */
div.gallery ul li img {
	position: absolute;
	left: 0;
	top: 0;
	border: 1px solid #dddddd;
	padding: 5px;
	width: 130px;
	height: 130px;
	background: #f0f0f0;
}

div.gallery ul li img:hover {
	width: 200px;
	height: 200px;
	margin-top: -130px;
	margin-left: -130px;
	top: 65%;
	left: 65%;
}

p.attribution {
	font-family: 'consolas';
	color: #000;
	clear: both;
	text-align: center;
	line-height: 25px;
	padding-top: 30px;
}

p.attribution a {
	color: #4c8d7c;
}

/* responsive hack */
@media only screen and (min-width: 499px) and (max-width: 1212px) {
	.wrapper {
		width: 500px;
	}
}

@media only screen and (max-width: 498px) {
	.wrapper {
		width: 300px;
	}

	div.gallery ul {
		list-style-type: none;
		margin: 0;
	}
}

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