body {
    background-color: #111;
    color: #aaa;
    font-family: Arial, Helvetica, sans-serif;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    margin: 10%;

}

#startauswahl {
    width: 100vw;
    height: calc(50px);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;

}

.box1 {
    width: 20%;
    padding: 25px;
    background-color: #550000;
    text-align: center;
    align-content: center;
    border-radius: 10px;
    text-decoration: none;
    color: #aaa;
    border: 1px solid #550000;
    transition: 0.5s all;
}
.box1:hover {
    text-shadow:  5px 5px 5px #000;
    background-color: #990000;
    border: 1px solid #ff0000;
    color: #fff;
}
.onTop {
    margin-bottom: 5vh;
}

h1,
h2 {
    width: 100%;
    text-align: center;
}
#programmliste {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

a {
    text-decoration: none;
    border: 1px solid grey;
    border-radius: 10px;
    padding: 5px;
    margin: 12px;
    transition: 0.5s all;
    color: grey;
}
a:hover {
    color: white;
    border: 1px solid red;

}
li {
    margin: 15px;
}
li:hover {
    color: red;
    transition: 0.5s all;
}