@import url('https://fonts.googleapis.com/css?family=Arapey|David+Libre|Marmelad');



* {
    box-sizing: border-box;
    list-style: none;
    margin: 0;
    padding: 0;
}

body {
    font-family: "trebuchet MS", arial, helvetica, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #daf6fa;
}

a {
    text-decoration: none;
}

p {
    font-family: 'David+Libre', sans-serif;
    font-size: 0.8em;
    padding-bottom: 1em;
    max-width: 50em;
}


h3 {
    color: cadetblue;
    border-bottom: dotted 2px lightcoral;
    margin-bottom: 0.5em;
    margin-top: 0.5em;
}

img {
    max-width: 100%;
    height: auto;
}


article figure {
    border-radius: 2%;
    overflow: hidden;
    max-width: 50%;    
	margin: 1em auto;
    box-shadow: 0 0.35em 0.5em 0 rgba(0, 0, 0, 0.2);
}

figure>img,
#logo>img {
    display: block
}

article{
    text-align: center;
}

article h2{
    text-align: left;
}


#contenedor {
    background-color: #f7feff;
    margin: auto;
    max-width: 90em;
    min-height: 100vh;
    width: 90%;
}

header,
footer, footer p{
    background-color: #00acac;
    padding: 1em;
    text-align: center;
}

#logo {
    background-color: #ffffff;
    border-radius: 0.3em;
    font-size: 2em;
    width: 4em;
    box-shadow: 0 0 0 0.2em rgba(0, 0, 0, 0.2);
    display: inline-block;
    padding: 0.2em;
}

nav {
    margin-top: 1em;
    box-shadow: 0 0 0 0.4em rgba(0, 0, 0, 0.1);
}

nav ul {
    margin: 0;
    padding: 0;
}


nav ul li a {
    background-color: #36b8bc;
    border: solid 2px rgba(0, 0, 0, 0.2);
    border-radius: 5px;
    color: white;
    display: block;
    padding: 0.25em;
    text-align: center;
}

nav ul li a:hover {
    color: black;
    background-color: #3dccb6;
}

main,
aside {
    padding: 1em;
}


article {
    margin-bottom: 1em;
}

aside {
    background-color: #b6dedd;
}

section {
    background-color: rgba(255, 255, 255, 0.5);
    padding: 0.8em;
}

footer, footer p {
	width: 100%;
    color: #e5dfdf;
}


nav ul#principal li:hover>ul{
    max-height:50px;
    overflow:visible;
}

ul#principal li ul{
    max-height:0; /* su máxima altura es de 0*/
    overflow:hidden; /* oculto el contenido que desborda del elemento */
}