*{
margin:0;
padding:0;

}
body {
        background-color:rgb(172, 185, 180); 
        text-align: center;
       
}

.contenedor{ 
    width: 960px;
    margin: auto; }

header ul li { 
    display: block; 
 }   
    
header {
    margin-bottom: 20px; 
}  
    
h4 {  
    color: rgb(93, 147, 135); 
}  
 
h3  { 
    color: white;
    font-style: serif; 
    font-family:"century gothic";
    font-size: 14px;   
} 

h5{ text-align: center; 
    color: rgb(9, 203, 166);  
    font:0.8em Century gothic, serif;
}

#botonera{
    color: #8AE2F6;
    text-align:center; 
    float:left;
   }


#alumnos{ 
    color: #99D0DC;
    text-align:right; 
    float:left; 
} 

main{ 
    width: 690px; 
    height:900px;
    display: block;
    margin-right: 0; 
    margin-left: 15px; 
    background-color:rgb(97, 172, 154);
    text-align:left;
    float:right; 
    padding: 20px; 
    
    font-size:12px;
    color: rgb(60, 87, 82);
}

/*main{
background-color:rgb(97, 172, 154);
color:white;
display: block;
padding:20px;
width: 890px;
height:1024px;
float:right;
margin-bottom:30px;
font-size:15px;
}
*/
/*
aside { 
    width:30%; 
    float:left;
    background-color:rgb(97, 172, 154);
    margin-top:17px;
    margin-left:0;  
    text-align:center; padding:4%; 
   font:1em Century gothic, serif;
    color: rgb(60, 87, 82); }*/

aside{
  background-color:rgb(97, 172, 154);
  color:white;
  float:left;
  width:175px;
  padding:20px;
  height:900px;
  text-align: right;
  font-size:1em; 
}
    
footer {
   clear: both;
   text-align: center;
   margin-bottom:auto;
   padding-top:5%;padding-bottom:5%;  
   background-color: rgb(203, 226, 225);
   font-family: "arial", serif; 
 }

h6 {
    color: rgb(101, 113, 109);
   font-family:sans-serif; 
   font-style:oblique;
}
h2 { 
    color: white;
     font:1.2em Century gothic, normal;  
}

#logotexto { 
    background-color:rgb(56, 101, 93);
    text-align:center;
    padding-top:0%; padding-bottom:6%; 
    
}

nav ul li{ 
    display: inline-block;
    float: right; 
    font-family: "arial", serif; 
    margin-right:40px; 
    margin-left:20px; 
    margin-bottom:20px; 
    margin-top:20px; 
    list-style: none. 
}
nav ul li a { 
    color:#d9efd8;
    font-size:15px;
    text-decoration:none;


}