SELF-Treffen in Mannheim 2025
SELFHTML wird 30 Jahre alt!
Die Mitgliederversammlung findet am 24.05.2025 um 10:00 statt. Alle Mitglieder und Interessierte sind herzlich eingeladen.
Davor und danach gibt es Gelegenheiten zum gemütlichen Beisammensein. → Veranstaltungs-Ankündigung.
Beispiel:Memo-Card-2.html
Aus SELFHTML-Wiki
<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" media="screen" href="./Beispiel:SELFHTML-Beispiel-Grundlayout.css">
<title>Memo-Quiz - 2</title>
<style>
#gameboard {
display: grid;
gap: 1em;
grid-template-columns: repeat(4, 1fr);
width: 40em;
}
#gameboard button {
width: 8em;
aspect-ratio: 1 / 1;
perspective: 500px;
background: transparent;
border: 0;
padding: 0;
}
img {
max-width: 100%;
display: block;
}
.flip-card-inner {
position: relative;
width: 100%;
height: 100%;
text-align: center;
transition: transform 0.6s;
transform-style: preserve-3d;
}
ul {
text-align: start;
}
.flip-card[aria-selected="true"] .flip-card-inner {
transform: rotateY(180deg);
}
.flip-card-front,
.flip-card-back {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
border: thin solid black;
backface-visibility: hidden;
}
.flip-card-front {
background-color: #e6f2f7;
transform: rotateY(180deg);
}
.flip-card-front img {
width: 100%;
height: auto;
background-color: #fff;
display: block;
}
.flip-card-back {
background: white url(https://wiki.selfhtml.org/images/4/45/SELF-Logo.svg);
background-size: contain;
background-repeat: no-repeat;
background-position: center;
}
</style>
</head>
<body>
<h1>Memo-Quiz - noch ohne Funktion!</h1>
<p id="hint">Wähle zwei Karten aus und prüfe, ob sie ein Set sind.</p>
<div id="gameboard">
<img src="https://wiki.selfhtml.org/images/f/fd/Snowman.svg" alt="snowman">
<img src="https://wiki.selfhtml.org/images/9/90/Advent-candles-4.svg" alt="candles">
<img src="https://wiki.selfhtml.org/images/0/01/Selfhtml-logo-Weihnachten.png" alt="SELF-Logo mit Nikloausmütze, ca 2008">
<img src="https://wiki.selfhtml.org/images/5/59/Selfangel.jpg" alt="SELF-Mitglied als Weihnachtsengel, ca 2008">
</div>
<script>
document.addEventListener("DOMContentLoaded", () => {
const gameboard = document.querySelector("#gameboard");
const images = Array.from(gameboard.querySelectorAll("img"));
images.forEach((img) => {
for (let i = 0; i < 2; i++) {
const button = document.createElement("button");
button.classList.add("flip-card");
button.setAttribute("aria-selected", "false");
button.addEventListener("click", () => {
const isSelected = button.getAttribute("aria-selected") === "true";
button.setAttribute("aria-selected", isSelected ? "false" : "true");
});
const flipCardInner = document.createElement("div");
flipCardInner.classList.add("flip-card-inner");
const flipCardFront = document.createElement("img");
flipCardFront.classList.add("flip-card-front");
flipCardFront.src = img.src;
flipCardFront.alt = img.alt;
const flipCardBack = document.createElement("div");
flipCardBack.classList.add("flip-card-back");
flipCardInner.appendChild(flipCardFront);
flipCardInner.appendChild(flipCardBack);
button.appendChild(flipCardInner);
gameboard.appendChild(button);
}
img.remove();
});
});
</script>
</body>
</html>