allow fixed subnav to work with navbars of variable height
allow fixed subnav to work with navbars of variable height

simo101/bootswatch,wayties/bootswatch,primal-existance/bootswatch,douglaskastle/bootswatch,GerHobbelt/bootswatch,leevydanomalik/bootswatch,9-volt/bloodbank-flatly,Davidzhu001/bootswatch,CramFighter/bootswatch,jipexu/bootswatch,jipexu/bootswatch,guru-digital/bootswatch-sass,johan--/bootswatch,dretay/bootswatch,LeonardoGentile/bootswatch,mwalz/bootswatch,PaulBGD/bootswatch,voran/bootswatch,narainsagar/bootswatch,KR78/bootswatch,ansgarkroger/bootswatch,thetminko/bootswatch,nicolasmccurdy/bootswatch,AtlasWorldGroup/bootswatch,ejacky/bootswatch,narainsagar/bootswatch,ansgarkroger/bootswatch,abax-quicklog/bootswatch,HossainKhademian/BootsWatch,zackexplosion/bootswatch,ejacky/bootswatch,familyyy/bootswatch,kidGodzilla/bootswatch,nkraft/bootswatch,m-osama/bootswatch,hurgleburgler/bootswatch,Davidzhu001/bootswatch,titiushko/bootswatch,GerHobbelt/bootswatch,tyleriguchi/bootswatch,Shekharrajak/bootswatch,CramFighter/bootswatch,VeldMuijz/bootswatchThemes,lymanlai/bootswatch,phantombuster/bootswatch,CrawlingDragon/bootswatch,HossainKhademian/BootsWatch,douglaskastle/bootswatch,ansgarkroger/bootswatch,guru-digital/bootswatch,fhchina/bootswatch,zhangwenkang/bootswatch,hbj/bootswatch,Neusoft-PSD/bootswatch,CANTUS-Project/bootswatch,jipexu/bootswatch,thetminko/bootswatch,karlitxo/bootswatch,titiushko/bootswatch,oimken/bootswatch,fireeye/fireeye-bootswatch,gujiman/bootswatch,karlitxo/bootswatch,iacdingping/bootswatch,JonathanMatthey/bootstrap_themes,lymanlai/bootswatch,Denniskevin/bootswatch,oimken/bootswatch,gujiman/bootswatch,primal-existance/bootswatch,PaulBGD/bootswatch,Davidzhu001/bootswatch,pellucidanalytics/bootswatch,wayties/bootswatch,gbolahanalade/bootswatch,savankoradia/bootswatch,thomaspark/bootswatch,pellucidanalytics/bootswatch,gv1222/Modern,Neusoft-PSD/bootswatch,sumitdhameja/bootswatch,hackscribble/bootswatch,arashkeivan/bootswatch,9-volt/bloodbank-flatly,Prodrivers/bootswatch,hurgleburgler/bootswatch,jroqueweb/bootswatch,thomaspark/bootswatch,hackscribble/bootswatch,arashkeivan/bootswatch,oimken/bootswatch,karlitxo/bootswatch,xxroltsxx/bootswatch,evalica/bootswatch,douglaskastle/bootswatch,hackscribble/bootswatch,mubassirhayat/bootswatch,glovebx/bootswatch,abax-quicklog/bootswatch,leevydanomalik/bootswatch,thomaspark/bootswatch,amad4biz/bootswatch,leevydanomalik/bootswatch,DrillingInfo/bootswatch,johan--/bootswatch,tyleriguchi/bootswatch,mubassirhayat/bootswatch,sumitdhameja/bootswatch,iRomain/bootswatch,glovebx/bootswatch,sebinsequira99/bootswatch,edward408/bootswatch,b-cuts/bootswatch,DrillingInfo/bootswatch,biggora/bootswatch,xxroltsxx/bootswatch,simo101/bootswatch,LeXteRpro/bootswatch,kidGodzilla/bootswatch,evalica/bootswatch,nkraft/bootswatch,pellucidanalytics/bootswatch,biggora/bootswatch,PaulBGD/bootswatch,dretay/bootswatch,guru-digital/bootswatch,Arteaga2k/bootswatch,BogusCurry/bootswatch,jangeador/bootswatch,familyyy/bootswatch,m-osama/bootswatch,edward408/bootswatch,LeonardoGentile/bootswatch,VeldMuijz/bootswatchThemes,dretay/bootswatch,iacdingping/bootswatch,remugio/ru-bootswatch,gv1222/Modern,GerHobbelt/bootswatch,b-cuts/bootswatch,amad4biz/bootswatch,pat270/bootswatch,Sage-Bionetworks/bootswatch,sebinsequira99/bootswatch,Prodrivers/bootswatch,fireeye/fireeye-bootswatch,johan--/bootswatch,psychobunny/bootswatch,gbolahanalade/bootswatch,Neusoft-PSD/bootswatch,thetminko/bootswatch,voran/bootswatch,narainsagar/bootswatch,abax-quicklog/bootswatch,CrawlingDragon/bootswatch,Shekharrajak/bootswatch,fhchina/bootswatch,amad4biz/bootswatch,CANTUS-Project/bootswatch,edward408/bootswatch,zhangwenkang/bootswatch,Sage-Bionetworks/bootswatch,hbj/bootswatch,sebinsequira99/bootswatch,KR78/bootswatch,jroqueweb/bootswatch,jroqueweb/bootswatch,LeonardoGentile/bootswatch,Denniskevin/bootswatch,phantombuster/bootswatch,gbolahanalade/bootswatch,CramFighter/bootswatch,simo101/bootswatch,titiushko/bootswatch,ejacky/bootswatch,CrawlingDragon/bootswatch,lymanlai/bootswatch,Shekharrajak/bootswatch,iacdingping/bootswatch,nkraft/bootswatch,KR78/bootswatch,evalica/bootswatch,Sage-Bionetworks/bootswatch,gujiman/bootswatch,fhchina/bootswatch,guru-digital/bootswatch,familyyy/bootswatch,BogusCurry/bootswatch,mubassirhayat/bootswatch,nicolasmccurdy/bootswatch,douglaskastle/bootswatch,pellucidanalytics/bootswatch,AtlasWorldGroup/bootswatch,psychobunny/bootswatch,jangeador/bootswatch,zackexplosion/bootswatch,nicolasmccurdy/bootswatch,arashkeivan/bootswatch,zhangwenkang/bootswatch,LeXteRpro/bootswatch,hurgleburgler/bootswatch,mwalz/bootswatch,Denniskevin/bootswatch,9-volt/bloodbank-flatly,fireeye/fireeye-bootswatch,primal-existance/bootswatch,sumitdhameja/bootswatch,jangeador/bootswatch,BogusCurry/bootswatch,b-cuts/bootswatch,gv1222/Modern,tyleriguchi/bootswatch,evalica/bootswatch,wayties/bootswatch,DrillingInfo/bootswatch,Davidzhu001/bootswatch,remugio/ru-bootswatch,AtlasWorldGroup/bootswatch,savankoradia/bootswatch,VeldMuijz/bootswatchThemes,psychobunny/bootswatch,arashkeivan/bootswatch,hbj/bootswatch,guru-digital/bootswatch-sass,Arteaga2k/bootswatch,kidGodzilla/bootswatch,pat270/bootswatch,remugio/ru-bootswatch,biggora/bootswatch,voran/bootswatch,HossainKhademian/BootsWatch,xxroltsxx/bootswatch,iRomain/bootswatch,savankoradia/bootswatch,Arteaga2k/bootswatch,LeXteRpro/bootswatch,CANTUS-Project/bootswatch,Prodrivers/bootswatch,zackexplosion/bootswatch,iRomain/bootswatch,glovebx/bootswatch,evalica/bootswatch,phantombuster/bootswatch,m-osama/bootswatch,pat270/bootswatch,mwalz/bootswatch