body{
    background: #EEEEEE;
    
}

#cuerpo{
    margin-left: 20%;
    margin-right: 20%;
    margin-top: 3%;
    width: 60%;
}

.icono{
                font-size: 50px;
}
.icono-sm{
                margin-right: 10px;
}
.vertical-align {
   display: flex;
   align-items: center;
}
#footer {
    width: auto;
    height: 200px;    
    margin-top:-200px;
    -webkit-box-sizing:border-box;
    -moz-box-sizing:border-box;
    box-sizing:border-box;
    background: #333;
    border-top: 2px solid #000;
 
}