header {
    position: relative;
    top: 150px;
    left: 10%;  
}

h1{
    color: black;
    width: 80vi;
    font-size: 8vi;
    font-family: Arial;    
}

h2{
    color: black;
    font-size: 3vi;
    font-family: Arial;
    width: 80vi;
    
}
.navigationbuttons{
    position: absolute;
    right: 0;
    top: 20px;
    width: 250px;
    font-size: 25pt;
}

.container{
    position: relative;
    top: 250px;
}

img{
    width: 500px;
    height: auto;
}

@media only screen and (max-width:500px){
    img{width:90vi}
    h1{
        font-size: 15vi;
    }
    h2{
        font-size: 6vi;
    }
    .container{
    top: 175px;
    }
}