@import url(http://fonts.googleapis.com/css?family=Roboto:400,700,900);

/* Estilos generales */

*{ 
margin: 0; 
padding: 0;
font-weight: normal;
}

.separador{ 
    clear: both;
}

body{ 
    background: #ccc;
    font-family: 'arial';
    font-size: 16px;
}

.pagina{
    max-width: 960px;
    margin: 0 auto; 
    padding-top: 10px;
}

header{ 
    width: 100%;
    background: #000;
    min-height: 100px;
    }

main{  
    width: 100%;
    margin: 5px auto 0px auto;
}

section{  
    width: 100%;  
    background-color: #fff;
    display: block;
}


h1{
    font-size: 3rem; 
    font-family: 'Roboto'; 
    font-weight: 900; 
    float: left;
    text-align: center;
    line-height: 1.1em;
    margin: 34px 0 0 25px;
    color: #fff;
}

h2{
    font-size: 1.8rem; 
    font-family: 'Roboto'; 
    font-weight: 700;
    color:#FF0000;
    
}

aside{
    box-sizing: border-box;
    float: left;
    padding: 0;
    width: 40%;
    }

img{
    width:100%;   
}

article{
    box-sizing: border-box;
    color: #fff;
    float: left;
    padding: 1em 0 0em 6em;
    width: 60%;
    background-color: #fff;
    min-height: 384px;
}



article ul {  
    padding: 0 0 0 1em;
    line-height: 1em;
}

li{
    
    font-size: 1rem; 
    font-family: 'Roboto';
    color:black;
    font-weight: 400;
    line-height: 17px;
}


footer{ 
    background-color: #000; 
    width: 100%;
    display: block;
    box-sizing: border-box;
}

footer p{
    font-family: 'Roboto';    
    font-size: 0.8rem;
    font-weight: 400;
    text-align: center;
    color: #fff;
    padding: 8px ;
}




/* Botonera */

header nav{
    float: right; 
    margin-top: 40px;
    width: 60%;
}

nav ul li{
    float:left;
    background-color: #FF0000;
    width: 25%;
    text-align: center;
}

nav ul {
   list-style-type: none;
}

nav ul li a {
    width: 100%;
    color: #000;
    font-family: 'Roboto';    
    font-size: 0.9rem;
    font-weight: 700;
    
    text-decoration: none;
    display: inline-block;
    padding: 11px 0;
}

nav ul li a:hover {
    background-color: #fff;
    color: #000;
    transition: 0.4s;
}




/* Responsive */

@media only screen and (max-width: 768px){
footer p{
    text-align: left;
    padding: 2em;
    }
    
aside{
    width: 50%;
    }    
article{
    padding: 3em 0 0em 3em;
    width: 50%;
}    
    
}
@media only screen and (max-width: 480px){    
header nav{
    float: left; 
    margin-top: 10px;
    width: 100%;
}

header{ 
    width: 100%;
}

h1{
    margin: 34px 0 0 20%;
}
        
aside{
    width: 100%;
    }
article{
    padding: 3em 0 0em 3em;
    width: 100%;
}
}

@media only screen and (max-width: 320px){

article{
    padding: 2em 0 0em 1.5em;
}    

header{ 
    height: 110px;
}
h1{font-size: 2.5em;
    margin: 20px 0 0 10%;
}    
nav ul li a {
    font-size: 0.8em;
}
}