body {
    font-family: 'Open Sans', sans-serif;
}

nav {
    border-bottom: #ccc 2px solid;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: white;
    clear: both;
    z-index: 1;
}

ul {
    list-style: none;
    text-align: center;
    margin-top: 20px;
}

li {
    display: inline;
    margin: 8px;
}

li a {
    text-decoration: none;
    color: black;
    font-size: 18px;
}

li a:hover {
    color: #a9a9a9;
    padding-bottom: 5px;
    border-bottom: #a9a9a9 2px solid;
}

h1, h2, h3 {
    font-weight: 100;
}

h1 img,
h2 img {
    vertical-align: bottom;
}

#inicio {
    background-image: url(../imagenes/fondo-inicio.jpg);
    background-attachment: fixed;
    -ms-background-size: cover;
    background-size: cover;
}

.texto-derecha {
    text-align: right;
}

.texto-centro {
    text-align: center;
}

#inicio h1 {
    color: white;
    font-size: 30px;
    margin-right: 20px;
}

.fondo-verde {
    background-color: #a9a9a9;
    color: white;
}

.fondo-verde-oscuro {
    background-color: #007373;
    color: white;
}

.fondo-gris-oscuro {
    background-color: #007373;
    color: white;
}

.negro {
    color: black;
    font-weight: bold;
}

img {
	max-width: 100%;
	height: auto;
	margin-top: 10px;
}

#tileMug {
    background-color: #a9a9a9;
    -webkit-transition: 0.3s ease-in;
    -moz-transition: 0.3s ease-in;
    -ms-transition: 0.3s ease-in;
    -o-transition: 0.3s ease-in;
    transition: 0.3s ease-in;
}

#tileMug:hover {
    background-color: #007373;
}

.mini-tile {
    padding: 5px;
    margin-bottom: 5px;
    -webkit-transition: 0.25s ease-in;
    -moz-transition: 0.25s ease-in;
    -ms-transition: 0.25s ease-in;
    -o-transition: 0.25s ease-in;
    transition: 0.25s ease-in;
}

.mini-tile-gris {
    background-color: gray;
    -webkit-transform: scale(0.9);
    -moz-transform: scale(0.9);
    -ms-transform: scale(0.9);
    -o-transform: scale(0.9);
    transform: scale(0.9);
    -ms-opacity: 0.5;
    opacity: 0.5;
}

.sin-padding {
    padding: 0;
}

.sin-padding-bottom {
    padding-bottom: 0;
}

.primer-seccion {
    padding-top: 200px;
}

#separador {
    background-image: url(../imagenes/fondo-separador.jpg);
    background-attachment: fixed;
    -ms-background-size: cover;
    background-size: cover;
    padding-top: 150px;
}

@media all and (max-width: 767px) {
    li {
        display: block;
    }

    nav {
        position: absolute;
    }

    .primer-seccion {
        padding-top: 300px;
    }
}