* {
  margin: 0;
  padding: 0;
 
  }
header {
 width:100%;
 height: 100px;
 background-color: lightgray;
 
}

.navi{
  height:60%;
  }
.navi img{
  height: 100%;
  float:left;
  }
.nave {

 height:40%;
 
  }
header ul{
   display: block;
   float:right;
   height:100%;
   border-radius: 5px;
  }
header li{
  
   height:80%;
   Display:inline-block;
   border: solid;
   border-radius: 5px;
   background-color:lightgreen;
  }

aside {
 width: 20%;
 height: auto;
 float:right;
 border:solid;
 background-color: blue;
}
.naveg {
  width: 19.9%;
 height: auto;
 float:left;
 display:block;
 background-color: green;
 position:fixed;
}
aside img {
 width:100%;
}
section {
  width: 60%;
  margin:0 0 0 19.9% ;
 height: auto;
 background-color: yellow;
 border:solid;
}