.play {
    background-image:url(../images/icon-play.gif) !important;
}
.pause {
    background-image:url(../images/icon-pause.gif) !important;
}
.volume {
    background-image:url(../images/icon-volume.gif) !important;
}
.mute {
    background-image:url(../images/icon-mute.gif) !important;
}
.x-form-element .preview-button {
    margin-left: 5px;

}