body{background:#f0f3f5;color:#fff}header{background:#9aca40;padding:20px;margin-bottom:20px}.contenedor-main{margin-bottom:20px}main{background:#fff;color:#424242;padding:20px 0}aside{background:#dee5e8;padding:60px 0;color:#0d47a1}.widgets{margin-bottom:20px}.widgets>div{background:#2196f3;color:#fff;padding:20px}footer{padding:20px 0;background:#1e1e1e}