a.sm2_button{position:relative;display:inline-block;width:18px;height:18px;text-indent:-9999px;overflow:hidden;vertical-align:middle;border-radius:5px;margin-top:-1px;transition:all .4s ease-in-out}a.sm2_button:focus{outline:0}a.sm2_button,a.sm2_button.sm2_paused:hover{background-color:#666;background-image:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAkAAAAKCAYAAABmBXS+AAAAbklEQVQY02NgQAL//v1jZMAF/v//vwuIs9HEUBUBTbj4HwIeA3EGVsVAxtn/qOAVUGM8uknIiv4hsV8A5ZKxKfoLVvnvHwifAzLtMKwDSQLBVSBti27dJajkcSD2RJODO3wtkOOMz/tMSJJYAxMA5dmsL0IfubQAAAAASUVORK5CYII=);background-image:none,url(../image/arrow-right-white-2x.png);background-size:9px 10px;background-repeat:no-repeat;background-position:5px 50%}a.sm2_button.sm2_playing,a.sm2_button.sm2_playing:hover,a.sm2_button:hover{background-color:#299fd8}a.sm2_button.sm2_playing,a.sm2_button.sm2_playing:hover{transform:rotate(360deg)}a.sm2_button.sm2_paused,a.sm2_button.sm2_paused:hover{background-color:#333;transform:rotate(90deg)}