* {

    margin: 0;
    padding: 0;
    font-family: 'Open Sans', sans-serif;
}
img {
    max-width: 100%;
    height: auto;
}
h1{
    color: #e2e2e2;
    padding-top: 5%;
    font-size: 2em;
    width: 80%;
    margin-left: 10%;
    clear: both;
}
h1 small {
    font-size: 0.5em;
}
header {
    background: #242120;
    text-align: center;
    position: relative;
}
#navabtrennung {
    position: absolute;
    bottom: 0;
    left: 10%;
    width: 80%;
    background: #333333;
    height: 5%;

}
#logo {
     width: 50%;
     float: left;
}
#buchenbutton {
    position: absolute;
    top: 0;
    right: 0;
    float: right;
}
nav ul {
    color: #FFFFFF;
    font-size: 1.5em;
    text-align: center;
    clear: both;
    position: absolute;
    bottom: 10%;
    width: 80%;
    margin-left: 10%;

}
nav li {
    display: inline;
    list-style-type: none;
    margin: 2.5em;
}


@media screen and (max-width: 600px) {
    header {
       height: 100vh;
    }
}
@media screen and (min-width: 600px) and (max-width: 900px) {
        header {
       height: 100vh;
    }
    #logo {
        width: 33.333333%;
    }
    nav  li {
        margin: 0.8em;
    }
}
@media screen and (min-width: 900px){
    header {
        height: 66.666666vh;
    }
    #logo {
        width: 20%;
    }
    h1 {
        font-size: 4em;
        clear: none;
        padding-top:20%;
    }
}