body{
    background: url(../fondo.png) #3EA1FF repeat ;
    color: white;
    
}

header{
    background-color: white;
    color: black;
    opacity: 0.7;
    text-align: center;
    border-radius: 20px;
    padding: 30px;
    margin:20px;
}
header h1{
    font-variant:small-caps;
}

#etsiit{
    border: 1px white solid;
    border-color: white;
    border-radius: 20px;
    display: block;
    margin: 0 auto
    
}
#contenido {
    margin: 40px 50px;
    padding-bottom: 1em;
    
    
}
#contenido h2{
    color: silver;
    text-transform: uppercase;
}

#contenido p{
    font-size: 110%;
    line-height:130%;
    text-align:justify;    
}

#contenido a{
    color:white;
    text-decoration: none;
    border-bottom: 1px dotted white;
    
    
}
#contenido a:hover{
    color: silver;
    text-decoration: none;
    border-bottom: 1px dotted silver;
}

#contenido ol{
    list-style-type: upper-roman;
    margin-top: 30px;
    
}
#contenido ol li{
    margin-bottom: 15px;
}
#contenido table{
    width:300px;
    padding: 15px;
    border: 1px solid silver;
    text-align: center;
    border-radius: 15px;
}

#contenido table th{
    background-color: white;
    color: #3EA1FF;
    padding: 5px 15px;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    
}
#contenido table td {
    border: 1px silver solid;
    padding: 5px 15px;
}
footer p{
    text-align: center;
    font-size: 90%;
}
footer{
    background-color: black;
    height: 3em;
    position: fixed;
    bottom: 0px;
    left: 0px;
    width:100%
}