.ibroller {}
.ibroller .ibr_mask {overflow:hidden; position:relative;}
.ibroller .ibr_group {}
.ibroller .ibr_unit {position:absolute;}

.ibroller .ibr_visible {visibility:visible;}
.ibroller .ibr_invisible {visibility:hidden;}

.ibr_noani {transition:none !important; -webkit-transition:none !important; -moz-transition:none !important; -ms-transition:none !important;}
.test_transition {transition:opacity .01s; -webkit-transition:opacity .01s; -ms-transition:opacity .01s; -moz-transition:opacity .01s;}