@import url('https://fonts.googleapis.com/css?family=Roboto');
body{
    border: 0;
    margin: 0;

}
.contenido{
    height: -webkit-fill-available;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}
.primer{
    width: 40%;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.primer>img{
width: 100%;
}
h1{
    font-family: 'Roboto', sans-serif;
    text-align: center;
}