回答編集履歴
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修正
test
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@@ -1 +1,253 @@
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スライダーの背景色をcssで黒にしたら出来ます。
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と思ったら出来ませんでした。
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optionを色々と調べたんですが出来ませんでした。
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仕方がないのでcssAnimationをJavascriptで追加して対応しました。
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```html
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<!DOCTYPE html>
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<html lang="ja">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>swiper(fade)</title>
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<link rel="stylesheet" href="https://unpkg.com/swiper/swiper-bundle.min.css">
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<style>
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.swiper-container {
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width: 600px;
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height: 400px;
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text-align: center;
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}
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.fade {
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width: 600px;
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height: 400px;
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background-color: black;
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opacity: 0;
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z-index: 1;
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position: absolute;
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top: 0;
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}
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.fadeOut {
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animation-name: fadeOut;
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animation-duration: 0.5s;
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animation-delay: 4s;
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animation-fill-mode: forwards;
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}
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.fadeIn {
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animation-name: fadeIn;
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animation-duration: 0.5s;
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animation-delay: 1s;
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animation-fill-mode: forwards;
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}
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@keyframes fadeOut {
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0% {
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opacity: 0;
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}
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100% {
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opacity: 1;
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}
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}
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@keyframes fadeIn {
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0% {
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opacity: 1;
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}
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100% {
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opacity: 0;
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}
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}
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</style>
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</head>
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<body>
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<div class="swiper-container">
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<!-- Additional required wrapper -->
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<div class="swiper-wrapper">
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<div class="fade fadeOut"></div>
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<div class="swiper-slide">
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<div class="slide-img"><img src="https://dummyimage.com/600x400/0009ff/fff&text=1" alt=""></div>
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</div>
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<div class="swiper-slide">
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<div class="slide-img"><img src="https://dummyimage.com/600x400/0009ff/fff&text=2" alt=""></div>
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</div>
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<div class="swiper-slide">
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<div class="slide-img"><img src="https://dummyimage.com/600x400/0009ff/fff&text=3" alt=""></div>
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</div>
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</div>
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</div>
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<script src="https://unpkg.com/swiper/swiper-bundle.min.js"></script>
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<script>
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const SwiperStart = new Swiper('.swiper-container', {
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loop: true,
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effect: "fade",
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autoplay: {
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delay: 4000,
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},
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speed: 2000
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})
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const fadeItem = document.getElementsByClassName("fade");
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fadeItem[0].addEventListener('animationend', () => {
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const fade = document.getElementsByClassName("fade")[0];
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if (fade.classList.contains("fadeOut")) {
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fade.style.opacity = 1;
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fade.classList.remove("fadeOut");
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fade.classList.add("fadeIn")
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} else {
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fade.style.opacity = 0;
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fade.classList.remove("fadeIn");
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fade.classList.add("fadeOut")
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}
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});
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</script>
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</body>
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</html>
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```
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