body {
    margin: 0;
}

header {
    padding: 10px;
}

header > h1 {
    margin: 0;
    font-size: 1.2em;
}

header ul {
    list-style: none;
    display: flex;
    gap: 5px;
    margin: 0;
    padding: 5px;
}

#items {
    list-style: none;
    padding-left: 0;
    margin: 5px;
}

#items > li {
    padding: 5px;
    margin: 2px;
    background-color: #eef0ff;
    display: flex;
    flex-direction: column;
}