body {
    font-family: Arial, sans-serif;
    background-color: #f2f2f2;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
.calendar-container {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    padding: 20px;
    width: 300px;
}
.month-selector {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}
#current-month-year {
    font-size: 18px;
    font-weight: bold;
}
#prev-month, #next-month {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 8px 16px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 14px;
    border-radius: 5px;
    cursor: pointer;
}
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
}
.day-cell {
    padding: 10px;
    border: 1px solid #ccc;
    cursor: pointer;
}
.today {
    background-color: #4CAF50;
    color: white;
    font-weight: bold;
}