#main {
   height: 100%;
   display: -webkit-flex;
   display:         flex;
   flex-flow: column;
   
}
#main  article aside{
     height: 90%;  
   display: -webkit-flex;
   display:         flex;
   flex-direction: c;}

#main:after { content:"Smartphone Layout";}

footer {display:none; }
body {font-size: large;}