fontello-ie7-codes.css

.icon-birthday { *zoom: expression( this.runtimeStyle['zoom'] = '1', this.innerHTML = ' '); }
.icon-star-empty { *zoom: expression( this.runtimeStyle['zoom'] = '1', this.innerHTML = ' '); }
.icon-ok { *zoom: expression( this.runtimeStyle['zoom'] = '1', this.innerHTML = ' '); }