header {
    position: fixed;
    height: 63px;
}
header img {
    position: absolute;
    width:75px;
    top: 10px;
    left: calc(50% - 36px);
    border-width: 2px;
}
main {
    position: relative;
    width: 100%;
    top:63px;
    margin-bottom: 225px;
    min-height: calc(100% - 225px);
    text-align: center;
}
footer {
    min-height: 50px;
    border-width: 1px 0px 0 0px;
    position: fixed;
    bottom: 0;
    text-align: center;
    display: inline-block;
    border-radius: 20px 20px 0px 0px;
    width: 100%;
}
footer a {
    display: inline-block;
    position: relative;
    margin-right: 10px;
}
galerie {
    display: block;
    position: relative;
}
bildbox {
    position:relative;
    display: inline-block;
    box-sizing: border-box;
    width:90%;
    aspect-ratio : 1 / 1;
    margin: 15px 0;
    background-position: center;
    background-repeat: no-repeat;
    background-image: URL(../pics/test.jpg);
    background-size:cover ;
    box-shadow: 10px 10px 15px rgba(9, 83, 129, 0.5);
    border-radius: 10px;
    font-family: 'IndieFlower-Regular';
    font-style: italic;
}
bildbox a {
    width:100%;
    box-sizing: border-box;
    text-align:right;
    padding:5px 10px 5px 0px;
    position: relative;   
    display:block;
    border-radius: 0px 0px 10px 10px;
    font-size: 20px;
    top: calc(90vw - 52px);
}
einleitung {
    height: calc(100% - 63px);
    display: block;
    position: relative;
    width: 100%;
    margin: 0;
    padding: 0;
}
article {
    width:100%;
    box-sizing: border-box;
    position: absolute;
    padding:15px 20px 20px 0px;
}
einleitung img {
    bottom: 0;
}
@media (max-width: 500px) {
    einleitung {
        bottom: 40px;
    }
}

#b1 {
    display: none;
}
#b2 {
    position:absolute;
    left:0;
    width: 100%; 
}