*{
    margin: 0px;
    padding: 0px;
}
body{
    background-color: cadetblue;
    font-family: 'Courier New', Courier, monospace;
    text-align: center;
}

#cab{
    background-color: aqua;
    width: 1100px;
    margin: 0px auto;
    text-align: center;
}

.article{
    float: left;
    list-style: none;
    margin: 10px;
    line-height: 30px;
}

.footer{
    display: flex;
    text-align: center;
}

.article:first-child{
    padding-top: 10px;
    border-top: 1px;
}

header{
    background-color: cornflowerblue;
    width: 100%;
    margin: 0px;
    text-align: center;
    line-height: 100px;
}

nav{
     height: 50px;
}

nav ul li{
    float: left;
    list-style: none;
    margin: 10px;
    line-height: 30px;
}

.clearfix{
    clear: both;
}

#inicio{
    display: inline;
    float: left;
}

#contenido{
    background-color: white;
    font-family: 'Times New Roman', Times, serif;
    float: left;
    width: 80%;
    min-height: 500px;
    text-align: center;
    display: inline;
}

aside{
    background-color: cadetblue;
    float: left;
    width: 20%;
    min-height: 500px;
    display: inline;

}

footer{
    text-align: center;
    height: 50px;
    line-height: 50px;
}
.dvimg {
    display: inline;
    float: left;
    width: 40%;
    padding: 5%;
}