*{margin: 0; padding: 0;}
@import url(https://fonts.googleapis.com/css?family=Open+Sans:400,800);
.contenedor{max-width: 960px; margin: 0 auto 0 auto}
header{width: 100%; min-height: 50px;}
header img{position:relative}
nav{width: 100%; min-height: 2px; background-color: #000}


h1{font-family:'Open Sans', sans-serif; font-weight: 800;}
h2{font-family:'Open Sans', sans-serif; font-weight: 400;}
h3{font-family:'Open Sans', sans-serif; font-weight: 400;}