<!DOCTYPE html>
demo
<br>
body { margin: 0; }<br>
.swiper-container { width: 100%; height: 480px; }<br>
.swiper-slide img { width: 100%; }<br>
#audio_btn { position: absolute; left: 10px; bottom: 10px; z-index: 200; display: none; width: 50px; height: 50px; background-repeat: no-repeat; }<br>
.loading_background { background-image: url(img/music_loading.gif); background-size: 30px 30px; opacity: 0.5; background-position: center center; }<br>
.loading_yinfu { position: absolute; left: 10px; top: 10px; width: 30px; height: 30px; background-image: url(img/yinfu.png); background-repeat: no-repeat; background-position: center center; }<br>
.play_yinfu { background-image: url(img/music.gif); background-repeat: no-repeat; background-position: center center; background-size: 60px 60px; }<br>
.rotate { position: absolute; left: 10px; top: 10px; width: 30px; height: 30px; background-size: 100% 100%; background-image: url(img/music_off.png); -webkit-animation: rotating 1.2s linear infinite; -moz-animation: rotating 1.2s linear infinite; -o-animation: rotating 1.2s linear infinite; animation: rotating 1.2s linear infinite; }<br>
@-webkit-keyframes rotating { from {<br>
-webkit-transform: rotate(0deg);<br>
}<br>
to { -webkit-transform: rotate(360deg); }<br>
}<br>
@keyframes rotating { from {<br>
transform: rotate(0deg);<br>
}<br>
to { transform: rotate(360deg); }<br>
}<br>
@-moz-keyframes rotating { from {<br>
-moz-transform: rotate(0deg);<br>
}<br>
to { -moz-transform: rotate(360deg); }<br>
}<br>
.off { background-image: url(img/music_off.png); background-size: 30px 30px; background-repeat: no-repeat; background-position: center center; }<br>
@-webkit-keyframes start { 0%, 30% {<br>
opacity: 0;<br>
-webkit-transform: translate(0, 10px);<br>
}<br>
60% {<br>
opacity: 1;<br>
-webkit-transform: translate(0, 0);<br>
}<br>
100% {<br>
opacity: 0;<br>
-webkit-transform: translate(0, -8px);<br>
}<br>
}<br>
@-moz-keyframes start { 0%, 30% {<br>
opacity: 0;<br>
-moz-transform: translate(0, 10px);<br>
}<br>
60% {<br>
opacity: 1;<br>
-moz-transform: translate(0, 0);<br>
}<br>
100% {<br>
opacity: 0;<br>
-moz-transform: translate(0, -8px);<br>
}<br>
}<br>
@keyframes start { 0%, 30% {<br>
opacity: 0;<br>
transform: translate(0, 10px);<br>
}<br>
60% {<br>
opacity: 1;<br>
transform: translate(0, 0);<br>
}<br>
100% {<br>
opacity: 0;<br>
transform: translate(0, -8px);<br>
}<br>
}<br>
要做css3动画效果,急求