Calendar

HTML

CSS

JS

body {
            font-family: Arial, sans-serif;
            display: grid;
            place-items: center;
            height: 100vh;
            margin: 0;
            background-color: #333333;
        }
        .calendar {
            background-color: #111111;
            border-radius: 10px;
            box-shadow: 0 0 30px #222222;
            overflow: hidden;
            width: 300px;
            color: white;
            padding: 20px;
        }
        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px;
        }
        .btn {
            cursor: pointer;
        }
        #month-year {
            font-weight: bold;
            font-size: 20px;
        }
        .weekdays, .days {
            display: flex;
            flex-wrap: wrap;
        }
        .days {
            height: 210px;
        }
        .weekdays div, .days div {
            width: 14.28%;
            text-align: center;
            padding: 10px 0;
            border-radius: 5px;
        }
        .days div {
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .days div:hover {
            background-color: white;
            color: orangered;
        }
        .days .today {
            background-color: orangered;
            color: white;
        }
        .days .fade {
            color: #555;
        }

document.addEventListener('DOMContentLoaded', function () {
            const monthYear = document.getElementById('month-year');
            const daysContainer = document.getElementById('days');
            const prevButton = document.getElementById('prev');
            const nextButton = document.getElementById('next');
            const months = [
                'January', 'February', 'March', 'April', 'May', 'June',
                'July', 'August', 'September', 'October', 'November', 'December'
            ];
            let currentDate = new Date();
            let today = new Date();
            function renderCalendar(date) {
                const year = date.getFullYear();
                const month = date.getMonth();
                const firstDay = new Date(year, month, 1).getDay();
                const lastDay = new Date(year, month + 1, 0).getDate();
                monthYear.textContent = `${months[month]} ${year}`;
                daysContainer.innerHTML = '';
                // Previous month's dates
                const prevMonthLastDay = new Date(year, month, 0).getDate();
                for (let i = firstDay; i > 0; i--) {
                    const dayDiv = document.createElement('div');
                    dayDiv.textContent = prevMonthLastDay - i + 1;
                    dayDiv.classList.add('fade');
                    daysContainer.appendChild(dayDiv);
                }
                // Current month's dates
                for (let i = 1; i <= lastDay; i++) {
                    const dayDiv = document.createElement('div');
                    dayDiv.textContent = i;
                    if (i === today.getDate() && month === today.getMonth() && year === today.getFullYear()) {
                        dayDiv.classList.add('today');
                    }
                    daysContainer.appendChild(dayDiv);
                }
                // Next month's dates
                const nextMonthStartDay = 7 - new Date(year, month + 1, 0).getDay() - 1;
                for (let i = 1; i <= nextMonthStartDay; i++) {
                    const dayDiv = document.createElement('div');
                    dayDiv.textContent = i;
                    dayDiv.classList.add('fade');
                    daysContainer.appendChild(dayDiv);
                }
            }
            prevButton.addEventListener('click', function () {
                currentDate.setMonth(currentDate.getMonth() - 1);
                renderCalendar(currentDate);
            });
            nextButton.addEventListener('click', function () {
                currentDate.setMonth(currentDate.getMonth() + 1);
                renderCalendar(currentDate);
            });
            renderCalendar(currentDate);
        });

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