body {
  
   background-color: lightgray;
   font-family: monospace;
   text-align:center;
   color: dimgray;
    
    
}

nav ul{
    padding: inherit;
}
 
header nav ul {
    background-color: white;
    display: flex;
    flex-wrap: nowrap;
    justify-content: flex-start;
    border: 0.5em solid darkgray;
   
}

header nav ul li { 
    list-style: none;
    margin:auto;
    
}

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

nav ul img {
    width: 3em;
    
}
section {
    background-color:darkgray; 
    border-radius: 2em 2em;
    border: 0.5em solid grey;
    padding-top: 0.5em;
    padding-bottom: 1em;

}
h1 {
    background-color:lightgray;
    width: 13em;
    margin:0.5em auto;
    padding-top: 5px;
    height: 1.5em;
    border: 0.15em solid gray;
    font-size: 1.5em;


}

article img{
    width:  15em;
    margin:auto;
    border-radius: 2em;
    border: 0.50em solid grey;
        
}

h2 { 
    color: dimgray;
    font-size:1.2em; 
    
}

h3 {
   
    background-color:lightgray;
    border: 0.2em solid grey;
    font-size: 1.1em;
   
}
  

article nav ul {
    display: flex;
    justify-content:space-around; 
  
   
}

article nav ul li {
    border: 0.15em solid grey;
    list-style: none;
    width: 11em;
    padding-top: 0.5em;
    height: 1.5em;

  
}

article nav ul li a {
    text-decoration: none;
   
    color: dimgray;
    
}
.materiasencurso ul {
    display: flex;
    flex-direction: column;
    padding: inherit;
     list-style: none;

}


.materiasencurso ul li {
    font-size: 1.2em;
    border: 0.05em solid grey;
    padding-top: 1em;
    height: 2em; 

}

footer p {
    background-color: lightgray;
    padding-top: 2em;
    color: dimgray;
    font-size: 0.8em;
    opacity: 0.8;
    
    

}



@media (min-width:34em) {


    .conjunto  {
    display: flex;
     max-width: 60em;
    justify-content: center;
        
        
    

}
.materiasencurso ul  {
    
    display: flex;
    flex-direction: column;
    width: 20em;
 
  
    }

.redessociales nav ul  {
    
       display: flex;
    flex-direction: column;
    width: 20em;
    align-items: center;
  
    }
    
.redessociales nav ul li {
    margin-top: 3.5em;

}
.integrantes nav ul  {
    
    display: flex;
    flex-direction: column;
    width: 20em;
    align-items: center;
  
    }
.integrantes nav ul li {
    margin-top: 3.5em;
}

@media (min-width: 35em){
    header nav ul{
       width: 60em;
       margin: auto;
       
    }
    
  section {
        width: 60em;
        margin: auto;

 }
    footer{
        width: 60em;
        margin: auto;
    }

    
}