/* Document : Style2 Created on : 21-ago-2014, 23:28:48 Author : LUIS Description: Purpose of the stylesheet follows. */

#imagen{margin: 0 auto; width: 100px; }

#contenedor{ background: gray; margin: 0 auto; width: 900px; }

#header{background: khaki;} #footer{background: burlywood;} .cuadro{width: 49%;}

#derecho{background: palegreen;float: right;} #izquierdo{background: paleturquoise;float: left;}

@media screen and (max-width: 900px){ #contenedor{width: 100%;} }

@media screen and (max-width: 600px){ .cuadro{width: 100%;} #derecho{float: left;} }