CSS3動畫播放/暫停與js

Question

我需要在我的網站上制作一個可以暫停和繼續播放的動畫。 我一直在努力一個小時，以使其正常工作，最終停下來只是暫停需要暫停的其中一張圖像。 我無法解決如何暫停所有圖像，有人可以幫助我嗎？

 // JavaScript Document var play = document.getElementById("play"); var pause = document.getElementById("pause"); var animated = document.getElementsByClassName("animated"); play.addEventListener('click', playAnimation); pause.addEventListener('click', pauseAnimation); function playAnimation() { for (var i = 0; i < animated.length; i += 1) { animated[i].style.WebkitAnimationPlayState = "running"; animated[i].style.animationPlayState = "running"; } } function pauseAnimation() { for (var i = 0; i < animated.length; i += 1) { animated[i].style.WebkitAnimationPlayState = "paused"; animated[i].style.animationPlayState = "paused"; } } 

 @charset "utf-8"; /* CSS Document */ body { margin: 0; } .wrapper { width: 100%; margin: 0 auto; } main { display: block; background-color: #fff; } .container { width: 100%; max-width: 960px; margin: 0 auto; padding: 0 20px; } header { height: 75px; background: #ebebeb url(img/taylor%20logo.png) no-repeat center; background-size: 150px 47.75px; } section.module.parallax { height: 600px; background-position: 50% 50%; background-repeat: no-repeat; background-attachment: fixed; -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover; } section.module.parallax-1 { background-image: url(img/tay1.png); } section.module.parallax-2 { background-image: url(img/taylor-swift-009.jpg); } section.module.parallax-3 { background-image: url(img/Taylor-Swift.jpg); } section.module.content { padding: 40px 0; background: #fff0fb; } section.module p { margin-bottom: 40px; font-size: 16px; font-weight: 300; color: #7a7a7a; } footer { padding: 20px 5px; background: #EBEBEB; color: #514f4f; } footer nav ul { list-style: none; margin: 0; padding: 0; text-align: right; } footer nav li { display: inline-block; } footer nav a { display: block; margin: 0 5px; color: #fff; } .social:hover { -webkit-transform: scale(1.2); transform: scale(1.2); } .social { -webkit-transition: all 0.7s ease; transition: all 0.7s ease; } /*****ANIMATION*****/ #animation { height: 450px; width: 1000px; background: url(img/scene.png) fixed no-repeat center; } #animation:hover { animation-play-state: paused; -webkit-animation-play-state: paused; } .flash { position: relative; height: 50px; width: 50px; margin: 0 auto; background: url(img/spritesheet.png) no-repeat left center; } @keyframes play { 100% { background-position: -100px; } } @-webkit-keyframes play { 100% { background-position: -100px; } } .flash-1 { animation: play .5s steps(2) infinite; -webkit-animation: play .5s steps(2) infinite; top: 50px; left: 400px; } .flash-2 { left: 100px; animation: play .5s steps(2) infinite; animation-delay: .2s; -webkit-animation: play .5s steps(2) infinite; -webkit-animation-delay: .2s; } .flash-3 { left: 350px; animation: play .5s steps(2) infinite; animation-delay: .3s; -webkit-animation: play .5s steps(2) infinite; -webkit-animation-delay: .3s; } .flash-4 { left: 70px; bottom: 80px; animation: play .5s steps(2) infinite; animation-delay: 1s; -webkit-animation: play .5s steps(2) infinite; -webkit-animation-delay: 1s; } .flash-5 { left: 375px; bottom: 70px; animation: play .5s steps(2) infinite; animation-delay: .2s; -webkit-animation: play .5s steps(2) infinite; -webkit-animation-delay: .2s; } .flash-6 { bottom: 100px; animation: play .5s steps(2) infinite; animation-delay: .2s; -webkit-animation: play .5s steps(2) infinite; -webkit-animation-delay: .2s; } .flash-7 { bottom: 290px; left: 170px; animation: play .5s steps(2) infinite; animation-delay: .4s; -webkit-animation: play .5s steps(2) infinite; -webkit-animation-delay: .4s; } .flash-8 { bottom: 150px; left: 200px; animation: play .5s steps(2) infinite; animation-delay: .3s; -webkit-animation: play .5s steps(2) infinite; -webkit-animation-delay: .3s; } .flash-9 { bottom: 370px; left: 450px; animation: play .5s steps(2) infinite; animation-delay: .7s; -webkit-animation: play .5s steps(2) infinite; -webkit-animation-delay: .7s; } .flash-10 { bottom: 300px; left: 100px; animation: play .5s steps(2) infinite; animation-delay: .9s; -webkit-animation: play .5s steps(2) infinite; -webkit-animation-delay: .9s; } .speech img { position: absolute; left: 0; animation-name: speechFadeInOut; animation-timing-function: linear; animation-iteration-count: infinite; animation-duration: 1s; animation-direction: alternate; -webkit-animation-name: speechFadeInOut; -webkit-animation-timing-function: linear; -webkit-animation-iteration-count: infinite; -webkit-animation-duration: 1s; -webkit-animation-direction: alternate; -webkit-transition: opacity 1s linear; -moz-transition: opacity 1s linear; -o-transition: opacity 1s linear; transition: opacity 1s linear; } .speech { position: relative; height: 100px; width: 100px; } .speech-1 { bottom: 750px; left: 420px; } .speech-2 { bottom: 900px; left: 900px; } @keyframes speechFadeInOut { 0% { opacity: 0; } 45% { opacity: 0.2; } 55% { opacity: 1; } 100% { opacity: 0; } } @-moz-keyframes speechFadeInOut { 0% { opacity: 0; } 45% { opacity: 0.2; } 55% { opacity: 1; } 100% { opacity: 1; } } @-webkit-keyframes speechFadeInOut { 0% { opacity: 0; } 45% { opacity: 0.2; } 55% { opacity: 1; } 100% { opacity: 1; } } #taylorCartoon { position: relative; bottom: 380px; left: 820px; animation-name: taylorWalk; animation-timing-function: ease-in-out; animation-iteration-count: 1; animation-duration: 10s; animation-direction: alternate; animation-delay: 2s; -webkit-animation-name: taylorWalk; -webkit-animation-timing-function: ease-in-out; -webkit-animation-iteration-count: 1; -webkit-animation-duration: 10s; -webkit-animation-direction: alternate; -webkit-animation-delay: 2s; } @keyframes taylorWalk { from { left: 820px; } to { left: 420px; opacity: 0%; } } @-webkit-keyframes taylorWalk { from { left: 820px; } to { left: 420px; opacity: 0%; } } @-moz-keyframes taylorWalk { from { left: 820px; } to { left: 420px; opacity: 0%; } } .control { height: 60px; width: 60px; border: 0; padding: 5px; display: inline-block; } .playHolder { background: url(img/play.png) no-repeat; background-size: 100%; margin-left: 100px; } .pauseHolder { background: url(img/pause.png) no-repeat; background-size: 100%; margin-left: 100px; } 

 <!doctype html> <html> <head> <meta charset="utf-8"> <link href="style.css" media="all" rel="stylesheet"> <script src="modernizr.js"></script> <title>Taylor Swift</title> </head> <body> <div class="wrapper"> <div> <header> </header> </div> <main> <section class="module parallax parallax-1"> <div class="container"> </div> </section> <section class="module content"> <div class="container"> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nihil consequuntur, nesciunt dicta, esse rem ducimus itaque quis. Adipisci ullam nam qui illum debitis sit ad in delectus, repudiandae non dolorum! Lorem ipsum dolor sit amet, consectetur adipisicing elit. Suscipit veritatis, facere aliquid itaque tempore consequatur nihil sint enim aliquam id saepe magnam totam repellat placeat a fugit nulla molestias voluptas.</p> </div> </section> <section class="module parallax parallax-2"> <div class="container"> </div> </section> <section class="module content"> <div class="container"> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nihil consequuntur, nesciunt dicta, esse rem ducimus itaque quis. Adipisci ullam nam qui illum debitis sit ad in delectus, repudiandae non dolorum! Lorem ipsum dolor sit amet, consectetur adipisicing elit. Suscipit veritatis, facere aliquid itaque tempore consequatur nihil sint enim aliquam id saepe magnam totam repellat placeat a fugit nulla molestias voluptas.</p> </div> </section> <section class="module parallax parallax-3"> <div class="container"> </div> </section> <section class="module content"> <div class="container"> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nihil consequuntur, nesciunt dicta, esse rem ducimus itaque quis. Adipisci ullam nam qui illum debitis sit ad in delectus, repudiandae non dolorum! Lorem ipsum dolor sit amet, consectetur adipisicing elit. Suscipit veritatis, facere aliquid itaque tempore consequatur nihil sint enim aliquam id saepe magnam totam repellat placeat a fugit nulla molestias voluptas.</p> </div> </section> MUSIC VIDEO <section class="module content"> <div class="container"> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nihil consequuntur, nesciunt dicta, esse rem ducimus itaque quis. Adipisci ullam nam qui illum debitis sit ad in delectus, repudiandae non dolorum! Lorem ipsum dolor sit amet, consectetur adipisicing elit. Suscipit veritatis, facere aliquid itaque tempore consequatur nihil sint enim aliquam id saepe magnam totam repellat placeat a fugit nulla molestias voluptas.</p> </div> </section> <div id="animation" class="animated"> <div class="flash flash-1" class="animated"> </div> <div class="flash flash-2" class="animated"> </div> <div class="flash flash-3" class="animated"> </div> <div class="flash flash-4" class="animated"> </div> <div class="flash flash-5" class="animated"> </div> <div class="flash flash-6" class="animated"> </div> <div class="flash flash-7" class="animated"> </div> <div class="flash flash-8" class="animated"> </div> <div class="flash flash-9" class="animated"> </div> <div class="flash flash-10" class="animated"> </div> <div id="taylorCartoon" class="animated"> <img src="img/taylor cartoon .png" width="181" height="300" /> </div> <div class="speech speech-1" class="animated"> <img src="img/SPEECH1.png" width="100" height="99" /> </div> <div class="speech speech-2" class="animated"> <img src="img/speech2.png" width="100" height="99" /> </div> </div> <div> <button type="button" class="button" id="play">Play</button> <button type="button" class="button" id="pause">Pause</button> </div> </main> <footer> <div class="copyright"> <small> &copy; Lana Yaffe 2015 | Taylor Swift </small> </div> <nav> <ul> <li class="social"> <a href="http://http://taylorswift.tumblr.com/"> <img src="img/Tumblr.png" /> </a> </li> <li class="social"> <a href="http://twitter.com/taylorswift13"> <img src="img/Twitter.png" /> </a> </li> <li class="social"> <a href="https://www.facebook.com/TaylorSwift"> <img src="img/Facebook.png" /> </a> </li> <li class="social"> <a href="https://instagram.com/taylorswift/"> <img src="img/Instagram.png" /> </a> </li> </ul> </nav> </footer> </div> <script src="js.js"></script> </body> </html> 

Answer 1

如果要停止所有.animated類的動畫，請執行以下操作：

body.pause .animated {
    animation-play-state: paused;
}

然后做：

function pause_all() {
    document.body.className = "pause";
}

function play_all() {
    document.body.className = "";
}

我不知道這是否有效，因為沒有圖像很難看動畫是否正確。