@import url(https://fonts.googleapis.com/css?family=Ruda:400,900);
body {
    background-image: url(http://www.catedraocampo.com.ar/vn25/tp/img/fondolibros.png);
    background-repeat: repeat;
    background-attachment: fixed;
    margin-left: 20%;
    margin-right: 10%;
    margin-top: 0.5rem;
    max-width: 70rem;
}
#pagina {
    background-color: #fed060;
    width: 100%;
}
/*Barra de navegacion*/
nav {
    height: 80px;
    width: 100%;
    position: relative; 
    margin: 0;
    background-color: #fed060;
    display: flex;
    display: -webkit-flex;
}
nav ul {
    list-style-type: none;
    overflow: hidden; 
    margin: 0 auto; 
    height: 80px;
    padding: 0;
}
nav ul li {
    display: inline;
}
nav ul li a {
    text-decoration: none;
    font-size: 0.7rem;
    font-family: 'Ruda', 'Arial', sans-serif;
    font-weight: 400;
    text-align: center;
    border-bottom: 1px solid #fff;
    box-sizing:border-box;
    -moz-box-sizing:border-box;
    -webkit-box-sizing:border-box;
}
nav a {
    display:inline-block;
    width: 170px;
}
a:link, a:visited {
    text-decoration: none;
    color: #111111;
    margin: 1rem;
}
nav ul li a:hover {
    text-decoration: none;
    color: #111111;
    background-color: #fff;
}
nav a#pull {
    display: none;
} 
.clearfix:before,
.clearfix:after {
    content: " ";
    display: table;
}
.clearfix:after {
    clear: both;
}
#main {
    margin: 0 auto 0 auto;
}
.logo {
    text-align: center;
    font-family: 'Ruda', 'Arial', sans-serif;
    font-weight: 400;
    font-size: 5rem;
    color: #fff;
    border: 12px solid #fff;
    padding: 5rem 0.2rem 5rem 0.2rem;
    margin-left: 20%;
    margin-right: 20%;
}
.titulo {
    text-align: center;
    font-family: 'Ruda', 'Arial', sans-serif;
    font-weight: 400;
    font-size: 3rem;
    color: #676666;
    margin: 2rem 0 0 0;
}
.subtitulo {
    text-align: center;
    font-family: 'Ruda', 'Arial', sans-serif;
    font-weight: 400;
    font-size: 2rem;
    color: #676666; 
}
.descarga {
    text-align: center;
    font-family: 'Ruda', 'Arial', sans-serif;
    font-weight: 400;
    font-size: 1rem;
    color: #fff;
    padding: 0.2rem 0 0.2rem 0;
    background: #676666;
    margin-left: 40%;
    margin-right: 40%;
}
section {
    display: block;
    margin: 5% auto 0 auto;
}
.titulos_section {
    text-align: center;
    font-family: 'Ruda', 'Arial', sans-serif;
    font-weight: 900;
    font-size: 2rem;
    color: #676666; 
} 
.textos_section {
    text-align: center;
    font-family: 'Ruda', 'Arial', sans-serif;
    font-weight: 400;
    font-size: 1.5rem;
    color: #676666;  
    line-height: 2rem;
    padding: 0 10% 0 10%;
}
section ul {
    position: relative;
    float: left;
    list-style-type: none;
    font-family: 'Ruda', 'Arial', sans-serif;
    color: #676666;
    max-width: 15%;
    text-align: center;
    margin-left: 3rem;
}
section ul li {
    font-size: 0.8rem;    
}
clear {
    clear:both;
}
#section2 {
    margin-top: 20rem;
}
footer { 
    font-family: "Ruda";
    font-weight: 900;
    font-size: 0.6rem;
    color: #676666;
    background-color: #fed060;
    text-align: center;
    margin: 5rem 1rem 1rem 1rem;
    padding: 1rem;
    display: flex;
    display: -webkit-flex;
}

/*Responsive*/

@media screen and (max-width: 768px) {
/*Responsive NAV*/
    nav { 
        height: auto;
    }
    nav ul {
        width: 100%;
        display: block;
        height: auto;
        background: #fae3ab;
    }
    nav li {
        width: 50%;
        float: left;
        position: relative;
    }
    nav li a {
        border-bottom: 1px solid #fff;
        border-right: 1px solid #fff;
    }
    nav a {
        text-align: left;
        width: 100%;
        text-indent: 25px;
    }
}
/*ResponsiveTEXTOS*/
    .titulo {
        font-size: 2rem;
        padding-left: 5%;
        padding-right: 5%;
    }
    .titulos_section {
        font-size: 2rem;
        padding-left: 5%;
        padding-right: 5%;
    }
    .subtitulo {
        font-size: 1rem;
        padding-left: 5%;
        padding-right: 5%;
    }
    .textos_section {
        font-size: 1.5rem;
        padding-left: 5%;
        padding-right: 5%;        
    }
/*Responsive NAV*/
@media only screen and (max-width : 480px) {
    nav {
        border-bottom: 0;
    }
    nav ul {
        display: none;
        height: auto;
    }
    nav a#pull {
        display: block;
        background-color: #fed060;
        width: 100%;
        position: relative;
    }
    nav a#pull:after {
        content:"";
        width: 100%;
        height: 120px;
        display: inline-block;
        position: absolute;
        right: 15px;
        top: 10px;
    }
/*ResponsiveTEXTOS*/
    .logo {
        font-size: 2rem;
    }
    .titulo {
        font-size: 2rem;
        padding-left: 5%;
        padding-right: 5%;
    }
    .titulos_section {
        font-size: 2rem;
        padding-left: 5%;
        padding-right: 5%;
    }
    .subtitulo {
        font-size: 1rem;
        padding-left: 5%;
        padding-right: 5%;
    }
}

@media all and (max-width: 70rem) {
    body {
    margin-left: 20%;
    margin-right: 20%;
}