.track_icon, .gdc_track_icon, .topic_icon, .gdc_topic_icon  {
    border: 0;
    width: 20px;
    height: 20px;
    margin-right: 2px;
    background: url('../images/sprite@x2.png') no-repeat;
    display: inline-block;
    vertical-align: middle;
    background-size: 304px 18px;
}

.format_icon {
    display: none;
}

.sb5-topic .topic_icon {
    margin: 0 5px;
    background-position-y: 0;
}

.icon_track_advocacy,
.icon_topic_advocacy {
    background-position-x: 0;
}

.icon_track_audio,
.icon_topic_audio {
    background-position-x: -22px;
}

.icon_track_business,
.icon_topic_business,
.icon_track_business_and_marketing,
.icon_topic_business_and_marketing {
    background-position-x: -44px;
}

.icon_track_design,
.icon_topic_design {
    background-position-x: -66px;
}

.icon_track_edusummit,
.icon_topic_edusummit,
.icon_track_educators,
.icon_topic_educators {
    background-position-x: -88px;
}

.icon_track_live_services,
.icon_topic_live_services {
    background-position-x: -110px;
}

.icon_track_game_career_development,
.icon_topic_game_career_development {
    background-position-x: -132px;
}

.icon_track_independent_games,
.icon_topic_independent_games {
    background-position-x: -154px;
}

.icon_track_game_narrative,
.icon_topic_game_narrative {
    background-position-x: -176px;
}

.icon_track_production,
.icon_topic_production,
.icon_track_production_and_team_leadership,
.icon_topic_production_and_team_leadership {
    background-position-x: -198px;
}
.icon_track_programming,
.icon_topic_programming {
    background-position-x: -220px;
}

.icon_track_special_event,
.icon_topic_special_event {
    background-position-x: -242px;
}

.icon_track_visual_arts,
.icon_topic_visual_arts {
    background-position-x: -264px;
}

.icon_track_vr_ar,
.icon_topic_vr_ar {
    background-position-x: -286px;
}