body {
    margin:0;
    overflow: hidden;
    display: flex;
    flex-direction: row;
}

button[onclick='debugWipe();'] {
    background: rgba(0, 0, 0, 0.2);
    position: absolute;
    bottom: 5px;
    left: 5px;
    cursor: pointer;
    color: red;
    border: 2px red solid;
}

div.cookie, div.middle, div.store {
    height: 100vh;
}