#arc{
    width: 354px;
    padding: 10px;
    
}

.contenidocontentbmenu {
    background: #ddd; 
    border-right:1px solid #C54900; 
    border-left:1px solid #C54900;
    width: 370px;
    margin: 0px;
    
}

#contenido{
	float: right;
}

#menucont{
    float:left;
    width: 373px;
}

#contenedor{
    margin-left: auto;
    width: 1010px;
    margin-right: auto;
        
}

.meslist ul{
    margin: 0px;
}