body {
	text-align: justify;
	font-family: Arial, Helvetica, sans-serif;
	font-size: 13px;
	color: #333333;
}

h1, h2, h3 {
	margin-top: 1.5em;
	font-weight: normal;
}

h1 {
	font-size: 2em;
}

h2 {
	font-size: 1.4em;
}

h3 {
	font-size: 1em;
}

p, ul, ol {
	margin-top: 1.5em;
	line-height: 160%;
}

ul, ol {
	margin-left: 3em;
}

a {
    font-size: 11px;
	color: #CC6B47;/*color link*/
}

a:hover {
	text-decoration: none;
	color: #3760BF;
}

a img {
	border: none;
}

/* Footer */


#footer p {
	margin: 0;
	font-size: .8em;
	color: #666666;
}

/*efecto*/
<style type="text/css">

.gallerycontainer{
position: relative;
/*Add a height attribute and set to largest image's height to prevent overlaying*/
}

.thumbnail img{
border: 1px solid white;
margin: 0 5px 5px 0;
}

.thumbnail:hover{
background-color: transparent;
}

.thumbnail:hover img{
border: 1px solid blue;
}

.thumbnail span{ /*CSS for enlarged image*/
position: absolute;
background-color: lightyellow;
padding: 5px;
left: -1000px;
border: 1px dashed gray;
visibility: hidden;
color: black;
text-decoration: none;
}

.thumbnail span img{ /*CSS for enlarged image*/
border-width: 0;
padding: 2px;
}

.thumbnail:hover span{ /*CSS for enlarged image*/
visibility: visible;
top: 285px;
left: 270px; /*position where enlarged image should offset horizontally */
z-index: 50;
}

</style>