body 
{
    padding-top: 60px; /* 60px to make the container go all the way to the bottom of the topbar */
}
  
#deviceContainer
{
    position:relative;
    border-top:40px solid black;
    border-bottom:40px solid black;
    border-left:20px solid black;
    border-right:20px solid black;
    border-radius:20px;
}

#device
{
    width:100%;
    height:100%;
    border:0px;
}