/* ссылка */
a.play {
color: black;
text-decoration: underline;
}
a.play.playing {
opacity: 0.5;
}
/* иконка play */
a.play span.icon {
display: inline-block;
width: 16px;
height: 18px;
background-color: transparent;
background-image: url('data:image/svg+xml;utf8,');
background-repeat: no-repeat;
background-position: 0 3px;
background-size: 100%;
margin-right: 0.2em;
}
a.play.playing span.icon {
background-image: url('data:image/svg+xml;utf8,');
}