body {
    font-family: Arial, sans-serif;
    margin: 20px;
    padding: 0;
    text-align: center;
}

header {
    margin-bottom: 20px;
}

textarea {
    width: 90%;
    height: 100px;
    margin-bottom: 10px;
}

#folderTree {
    text-align: left;
    display: inline-block;
    margin-top: 10px;
}

ul {
    list-style-type: none;
    padding-left: 20px;
}

li {
    position: relative;
    padding-left: 20px;
}

li::before {
    content: "📁";
    position: absolute;
    left: 0;
}

li.file::before {
    content: "📄";
}