body {background:url(../img/fondohtml.jpg);
    width: left;
    text-align: center;
    margin-top: 15;}
    

header {
    height: 25rem;
    padding-top: 2rem;
    padding-bottom: 2rem;
    margin-right: 2rem;
    margin-left: 2rem;
    margin-top: 2;
    margin-bottom: 0;margin: 0rem:}


header img{
    width: 20%;
    
}


h1{
    color: #892191;
    font-family: sans-serif;
    font-size: 3rem;
    height: 3rem;
    
    
}


h2 {
color:#a02aa5;
font-family: sans-serif;    

}
h3 {color:#8d8686; font-family: sans-serif}

p{ 
    font-family: sans-serif;
    font-size: 1rem;
    
}

    
footer p{
margin: 2rem 2rem;
margin-top; 
font-family:sans-serif;
color:#e9cff2;
font-style: italic;
font-size: 0.8rem;
}

   
.materias{    
    background: #fcfdd2;
    padding-top: 0.3rem;
    padding-bottom: 0.3rem;
    border-radius: 2rem;
    padding-top: -1rem;
    width: 50rem;
    display: block;
    margin: 0 auto}

   nav{
    text-align: inherit;
    }

nav ul {
    margin-top: 6rem;
    padding-top: -1rem
    list-style-type: left;
    margin: 2rem 4rem 0rem 4rem;
   
    }

nav ul li{
    display: inline-block;
    padding: 1rem 3rem;;
    background: #892191;
    border-radius: 1rem;
    }


nav ul li:hover{
    display: inline-block;
    padding: 1rem 3rem;;
    background: #f0c6f4;
    border-radius: 1rem;
    }

nav ul li a{
    text-decoration: none;
    font-family: sans-serif;
    font-size: 1rem;
    margin: 0;
    padding: 0.8rem;
    color: #fff;
    }