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ben.de-roo.org/calender/index.html
T
2026-08-04 17:39:35 +02:00

146 lines
3.6 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Dynamic HTML Calendar</title>
<style>
.calendar {
--accent: #0e2b68;
max-width: 480px;
margin: 0 auto;
font-family: system-ui, sans-serif;
}
.calendar-header {
display: flex;
justify-content: space-between;
align-items: center;
padding: 0.75rem 0;
}
.calendar-header button {
background: none;
border: 1px solid #3a71b9;
border-radius: 6px;
padding: 0.4rem 0.8rem;
cursor: pointer;
font-size: 0.9rem;
}
.calendar-header button:hover { background: #435466; }
.month-year {
font-size: 1.2rem;
font-weight: 600;
color: var(--accent);
}
.calendar-grid {
display: grid;
grid-template-columns: repeat(7, 1fr);
gap: 2px;
text-align: center;
}
.day-name {
padding: 0.5rem 0;
font-size: 0.8rem;
font-weight: 600;
color: #4270b1;
}
.day {
padding: 0.6rem 0;
font-size: 0.95rem;
border-radius: 6px;
}
.day:hover { background: #258ff8; }
.today {
background: var(--accent);
color: #ffffff;
font-weight: 600;
}
.today:hover { background: var(--accent); }
</style>
</head>
<body>
<div class="calendar">
<div class="calendar-header">
<button id="prev">&larr; Prev</button>
<span class="month-year" id="monthYear"></span>
<button id="next">Next &rarr;</button>
</div>
<div class="calendar-grid" id="grid">
<span class="day-name">Mon</span>
<span class="day-name">Tue</span>
<span class="day-name">Wed</span>
<span class="day-name">Thu</span>
<span class="day-name">Fri</span>
<span class="day-name">Sat</span>
<span class="day-name">Sun</span>
</div>
</div>
<script>
const grid = document.getElementById("grid");
const monthYear = document.getElementById("monthYear");
const now = new Date();
let currentMonth = now.getMonth(); // 0-based: 0 = January
let currentYear = now.getFullYear();
const monthNames = [
"January","February","March","April","May","June",
"July","August","September","October","November","December"
];
function renderCalendar() {
// Clear previous day cells, keep the 7 day-name headers
grid.querySelectorAll(".day").forEach(d => d.remove());
monthYear.textContent = monthNames[currentMonth] + " " + currentYear;
// Day of week for the 1st (0=Sun). Convert to Mon-start: Mon=0 … Sun=6
let firstDay = new Date(currentYear, currentMonth, 1).getDay();
firstDay = (firstDay + 6) % 7;
const daysInMonth = new Date(currentYear, currentMonth + 1, 0).getDate();
const today = new Date();
// Blank cells before the first day
for (let i = 0; i < firstDay; i++) {
const blank = document.createElement("span");
blank.className = "day";
grid.appendChild(blank);
}
// Day cells
for (let d = 1; d <= daysInMonth; d++) {
const cell = document.createElement("span");
cell.className = "day";
cell.textContent = d;
if (
d === today.getDate() &&
currentMonth === today.getMonth() &&
currentYear === today.getFullYear()
) {
cell.classList.add("today");
}
grid.appendChild(cell);
}
}
document.getElementById("prev").addEventListener("click", () => {
currentMonth--;
if (currentMonth < 0) { currentMonth = 11; currentYear--; }
renderCalendar();
});
document.getElementById("next").addEventListener("click", () => {
currentMonth++;
if (currentMonth > 11) { currentMonth = 0; currentYear++; }
renderCalendar();
});
renderCalendar();
</script>
<br>
<br>
<br>
</body>
</html>