resolved with:
.floatbox_canvas .floatbox_container .floatbox_body .avatar_select_list .ow_user_list_data { min-height: 70px; padding: 6px 6px 6px 95px;}.floatbox_canvas .floatbox_container .floatbox_body .avatar_select_list .ow_user_list_picture .ow_avatar img { width: 80px; height: 80px;}
thank you