Team Calender changes #header position to 'static'

Since Conflunece's default #header positon is relative,

(can check from /download/superbatch/css/batch.css )

'Team Calendars' plugin has #header

css in it.

It changes offsetParent of <div class="aui-dd-parent quick-nav-drop-down" style=""> (which determines Confluence Quick Search Result Box) from div#header to div#full-height-container

which makes it skip <div id="header-precursor">'s height and occurs design problem.

(Other plugin makes DIV inside div#header-precursor and Confluence Search Result Box ignores its height and appear up than usual)

I was about to put

jQuery('#header').attr("style","position:relative !important;"); to revert #header's position into relative,

but I'm aware of design problem might occur with Team Calendars Plugin.

Is it safe to roll back to relative?