body {
    font-family: Arial, sans-serif;
    margin: 20px;
}
.container {
    margin: 0 auto;
    padding: 20px;
    max-width: 300px;
    background: #3ed8d8;
}
.row {
    display: flex;
    align-items: center;
    margin: 10px 0;
}
.row input[type="checkbox"] {
    margin-right: 10px;
}
.check-all {
    margin-bottom: 20px;
}
.count {
    margin-top: 10px;
    font-weight: bold;
}