@charset "UTF-8";
/* CSS Document */

body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin: 20px;
}
.month {
    width: calc(100% - 40px);
    margin: 10px;
    border: 1px solid #ccc;
    padding: 20px;
    box-sizing: border-box;
    background-color: #f9f9f9;
}
.month h3 {
    text-align: center;
    margin-bottom: 20px;
}
table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    width: calc(100% / 7);
    text-align: center;
    padding: 5px;
    border: 1px solid #ccc;
}
th {
    background-color: #eee;
    font-weight: bold;
}

@media (min-width: 768px) {
    .month {
        width: calc(50% - 40px);
    }
}

@media (min-width: 992px) {
    .month {
        width: calc(33.333% - 40px);
    }
}