body{
   
   background-image: url(https://i.pinimg.com/originals/c8/7f/ba/c87fba47cb763d0672fd7c98e1b36878.jpg); 
   background-position: center ;
   background-repeat: no-repeat;
   width: 50px;
   height: 50px;
}
   section{
      width: 500px;
    background-color:aqua
    
   }
   header{

    display: flex
   }
   aside{ 
      width: 500px;
background-color:aqua

   }

   footer{
      background-color: aqua
   }