body {background:#E6E6E6; font-family: helvetica;}
h1 {
    font-size: 40px;
}
h2{
   font-size: 25px 
}
.legal{font-size: 12px;
    text-align: center;
}

header{
    background-color: chocolate;
    text-align: center;
    text-transform: uppercase;
    padding: 0.3rem;
    text-shadow: 1px 1px 1px white;
    margin-top: 1rem;
}

footer{
    padding-top: 10rem;
}

.contenedor{
    width: 100%;
    max-width: 60rem;
    margin: auto;
}

/*---nav---*/
nav ul {
    list-style-type: none;
    background-color:lightblue;
}

nav ul li a{
    text-decoration: none;
    color: black;
}

nav ul li{
    display: inline-block;
    padding: 1rem;
}

nav{
    text-align: center;
}

/*----section----*/

img{
    padding: 1rem;
}

.materias{
    text-align-last: left;
    font-size: 1.2rem;
}

.propuesta{
    text-align: left;
}