.hola {
  display: block;
  text-align: center;
  background: aqua;
  
}
nav,article,aside{
  display: inline;
  float: left;
  background: gold;
}
footer{
  clear:  both;
  display: block;
  color: brown;
  background:  blanchedalmond;
  
}
nav{
  width: 10%;
  height: 80px;
  background: blue;
  clear: both;
  
}
article{
  width: 80%;
  text-align: center;
  background-color: black;
  color:white;
}
aside{
  width: 10%;
  background-color:  chartreuse;
  height: 80px;
}
article header{
  background-color:  yellow;
  text-align: center;
  width: 100%;
  height: 10%;
  color: black;
}
article article{
  text-align: center;
  display: block;
  background: bisque;
  width: 100%;
 color: red;
  
}
article footer{
  text-align: center;
  background: red;
  
}