*                    { margin: 0; padding: 0; }
body                 { font: 16px Georgia, serif; }

#page-wrap           { margin: 2% auto; color: white; }
#page-wrap > .main   { border: 1px solid #999; padding: 1%; 
	                         margin-bottom: 1px; color: black; }

header, nav, section { background-image: url(https://image.freepik.com/vector-gratis/fondo-acuarela-manchas-azules-claras_23-2148525000.jpg); }
section #titulo      { text-align: center; }
img#imagen           { display: block; 
	                   margin: auto;
	                   width: 90%;
	                   max-height: 410px;
	                   padding: 2%;}
footer               { background-image:url(https://fondosmil.com/fondo/18110.jpg); text-align: center;}
nav span             { margin: 0px 10px 0px 0px;}
img.zoom {    
    -webkit-transition: all .1s ease-in-out;
    -moz-transition: all .1s ease-in-out;
    -o-transition: all .1s ease-in-out;
    -ms-transition: all .1s ease-in-out;
}
 
.transition {
    -webkit-transform: scale(1.1); 
    -moz-transform: scale(1.1);
    -o-transform: scale(1.1);
    transform: scale(1.1);
}