*{margin: 0; padding: 0;}

.pagina{
	width: 960px; 
    align-content: center;
  }

body{
    background: rgb(213, 213, 214); 
    font-family: arial, helvetica, sans-serif;
    
} 

header{
    background: rgba(244, 174, 241, 0.99);
    width: 100%;
    height: 100%;
    font-size: 20px;
    text-align: center;
    padding: 10px;
}

h1{
    font-size: 30px;
    margin-top: 20px;
    margin-bottom: 20px;
}


header nav ul a{
    background-color: rgba(188, 127, 186, 0.99);
	font-family:Arial, Helvetica, sans-serif;
	font-size: 15px;
    padding: 8px;
    margin-right: 10px;
    color:#000000;
    text-decoration: none;
    display: inline;
}

section{
    background: rgba(188, 127, 186, 0.99) ;
    width: 100%;
    padding: 10px;
}

h2{
    font-size: 23px;
    text-align: left;
}

h3{
    font-size: 18px;
}


article.info-alumno {
  float: left;
  width: 35%;
  padding: 15px;
  margin-left: 30px;  
  background: #f88bc2;
}

article.materias{
    float: left;
    width: 51%;
    padding: 15px;
    margin-left: 30px;
    background: #c4518b;
}

br{
    margin-top: 5px;
}

article.proyecto{

    width: 100%;
    padding: 15px;
    margin-right: 30px;
    margin-top: 10px;
}

.separador{
    clear: both;
}

.imagenes-propuestas{
   padding: 10px;
    
}

footer{
    background: rgba(252, 209, 250, 0.99); 
    width: 960px;
    padding: 10px;
    font-family: arial; 
    font-size: 10px
}