body {  
    clear: both; 
    background-image: url("../imagens/estrutural/background.jpg") ;   
    background-color: #e2e2e2;
    background-repeat:repeat-y;
    background-size:contain;
    background-position:center;
    }
    
#superior {
-webkit-box-shadow: 0px 1px 3px 1px rgba(125,125,125,0.39);
-moz-box-shadow: 0px 1px 3px 1px rgba(125,125,125,0.39);
box-shadow: 0px 1px 3px 1px rgba(125,125,125,0.39);       
    }