hey,
i added some line of code to fix the position of the #base-mainheader

#####################

var mainheader = $("#base-mainheader-container");
var submainheader = $("#base-submainheader");
var content = $("#content");

if(mainheader.size()){
mainheader.css("position", "fixed");
}
if(submainheader.size()){
submainheader.css("top","36px");
}
if(content.size()){
content.css("top","36px");
}

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