body {
    font-family: monospace;
    margin: 0px 20px 20px 20px
}
h1{
    font-weight: 200;
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
}
h2 {
    display: inline-block;
}
subscriptum {
    display: inline;
}
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
header div {
    display: flex;
    flex-direction: column;
}
header p {
    margin: 2px;
}
@media (max-width: 600px) {
    header {
        flex-direction: column;
        align-items: flex-start;
    }
    h1 {
        font-size: 1.2em;
    }
}
#content {
    transition: transform;
}

#prevention {
    display: none;
    color: red;
}
.btns {
    margin: 0px -20px;
    display:flex;
    flex-wrap: wrap;
    width: 100%;
}
.btns button {
    display:inline;
    margin:0;
    padding: 10px 20px;
    font-size: 1em;
    cursor: pointer;
    background-color: black;
    color:white;
    border-radius: none;
    outline:none;
    border:none;
}
button:hover {
    background-color: #333;
}