fix form validation bug

source/Ox.UI/js/Video/Ox.BlockVideoTimeline.js

@@ -106,13 +106,11 @@ Ox.BlockVideoTimeline = function(options, self) {
             // OxTarget and OxSpecialTarget are needed for InfoList
             .addClass('OxInterface OxTarget OxSpecialTarget')
             .css({
-                position: 'absolute',
                 top: '2px',
                 width:  Math.round(self.options.duration) + 'px',
                 height: '20px',
                 marginLeft: (-i * self.options.width) + 'px',
                 //background: 'rgba(255, 0, 0, 0.1)',
-                zIndex: 11
             })
             .appendTo(self.$lines[i]);
     }