geometria-solida/main.css

@import url(http://fonts.googleapis.com/css?family=PT+Serif:400,700);

body {
	font-family: "PT Serif", serif;
	font-size: 1.1em;
	color: #555;
	background: #777;
}

h1 {
	text-transform: uppercase;
	text-align: center;
}

h1, h2{
	color: #454545;
}

p {
	margin-top: 2em;
	margin-bottom: 2em;
}

a {
	transition: color .2s ease
}

a:link, a:visited {
	color: #fff;
	text-decoration: none
}
a:hover {
	color: #aaa;
	text-decoration: underline;
}

img {
	border: 6px solid #dfdfdf;
	border-radius: 5px;
	width: 70%;
	margin-left: 15%;
}

#container {
	width: 38em;
	margin: 2em;
	margin-left: auto;
	margin-right: auto;
	background: #fff;
	padding: 3.5em;
	border-radius: 3px;
	box-shadow:  0 4px 5px 0 #555
}

footer {
	text-align: center;
	margin: auto;
	margin-top: 2em;
	margin-bottom: 2em;
	padding: .5em;
	width: 25em;
	border-top: 2px solid #fff;
	font-size: .9em;
}