html {
    background-image: url('../img/containerschiff.png');
    background-position: center;
    background-size: cover;
    height: 100dvh;
    width: 100vw;
    overflow-y: hidden;
    overflow-x: hidden;
}

#login {
    position: absolute;
    top: 15dvh;
    right: 15vw;
    width: 400px;
    border: 1px solid var(--main);
}
#register {
    position: absolute;
    top: calc(15dvh + 350px);
    left: 55vw;
    width: 400px;
    border: 1px solid var(--main);
}

img {
    width: 80%;
}

@media(max-height: 900px)
{
#login {
    top: 10dvh;
    width: 300px;
    border: 1px solid var(--main);
}

}