header{
    position: relative;
    width: 100%;
    height: 100vh;
    background: url(images/header-bg.jpg), linear-gradient(rgba(0, 0, 0, 0.33), rgba(0, 0, 0, 0.33));
    background-size: cover;
    background-blend-mode: darken;
    text-align: center;
    padding: 25vh 5vw;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-position: center bottom;
}
header h1{
    font-size: 6em;
    color: white;
    text-shadow: 2px 2px 3px #000;
    font-weight: 500;
}
header p{
    font-size: 2em;
    color: white;
    text-shadow: 1px 1px 1px #000;
    font-weight: 400;
    font-style: italic;
}

@media screen and (max-width: 768px){
    header h1{
        font-size: 4em;
    }  
}
@media screen and (max-width: 410px){
    header h1{
        font-size: 3em;
    }  
    header p{
        font-size: 1.5em;
    }
}