#contenedor{
    width: 1800px;
    height: 2000px;
    background: aqua;
    margin: auto;
}
header{
    width: 1800px;
    height: 200px;
    background: rgb(167, 10, 181);
   
  
    
}
nav{
    width: 1800px;
    height: 100px;
    background: rgb(81, 1, 77);
   
 
    
}
main{
    width: 1500px;
    height: 1400px;
    background: rgb(74, 3, 9);
    
   
    
}
footer{
    width: 1800px;
    height: 300px;
   /* background: rgb(14, 5, 120);*/
    position: absolute;
     
}
#publicidad{
    width: 300px;
    height: 1400px;
    background: rgb(10, 165, 77);
    float:right;
	margin-top: -1400px;
    
}
#logo{
    width: 180px;
    height: 180px;
    float: left;
    margin-top: 20px;
    margin-left: 20px;
    
}
#imgfooter{
    
    float: left;
    margin-top:-55px;
    margin-left: 700px;

}