Fixed skiplink positioning refs #5986
Fixed skiplink positioning
refs #5986

- removed static position of the skiplink to prevent pushing the page content down
- only applying :focus CSS selector to focusable sr-only content

jomahoney/Ghost,klinker-apps/ghost,cwonrails/Ghost,disordinary/Ghost,Xibao-Lv/Ghost,chevex/undoctrinate,veyo-care/Ghost,sunh3/Ghost,epicmiller/pages,JohnONolan/Ghost,olsio/Ghost,ignasbernotas/nullifer,petersucks/blog,rizkyario/Ghost,javorszky/Ghost,MadeOnMars/Ghost,ErisDS/Ghost,adam-paterson/blog,Kaenn/Ghost,sunh3/Ghost,Kikobeats/Ghost,leonli/ghost,lukekhamilton/Ghost,stridespace/Ghost,Gargol/Ghost,Elektro1776/javaPress,ballPointPenguin/Ghost,kevinansfield/Ghost,e10/Ghost,petersucks/blog,mohanambati/Ghost,vainglori0us/urban-fortnight,sebgie/Ghost,olsio/Ghost,kaychaks/kaushikc.org,daihuaye/Ghost,lukekhamilton/Ghost,bosung90/Ghost,javorszky/Ghost,JohnONolan/Ghost,hnarayanan/narayanan.co,vainglori0us/urban-fortnight,letsjustfixit/Ghost,Xibao-Lv/Ghost,daimaqiao/Ghost-Bridge,sebgie/Ghost,acburdine/Ghost,letsjustfixit/Ghost,vainglori0us/urban-fortnight,acburdine/Ghost,ballPointPenguin/Ghost,pollbox/ghostblog,novaugust/Ghost,janvt/Ghost,mohanambati/Ghost,tidyui/Ghost,NovaDevelopGroup/Academy,SkynetInc/steam,ErisDS/Ghost,ManRueda/manrueda-blog,novaugust/Ghost,veyo-care/Ghost,tidyui/Ghost,stridespace/Ghost,SkynetInc/steam,BlueHatbRit/Ghost,janvt/Ghost,ignasbernotas/nullifer,TryGhost/Ghost,daimaqiao/Ghost-Bridge,BlueHatbRit/Ghost,daihuaye/Ghost,NovaDevelopGroup/Academy,disordinary/Ghost,singular78/Ghost,ErisDS/Ghost,kevinansfield/Ghost,leninhasda/Ghost,Elektro1776/javaPress,klinker-apps/ghost,jaswilli/Ghost,obsoleted/Ghost,kevinansfield/Ghost,lf2941270/Ghost,Gargol/Ghost,GroupxDev/javaPress,pollbox/ghostblog,Kaenn/Ghost,leonli/ghost,jorgegilmoreira/ghost,TryGhost/Ghost,singular78/Ghost,novaugust/Ghost,JohnONolan/Ghost,rizkyario/Ghost,obsoleted/Ghost,dbalders/Ghost,ManRueda/manrueda-blog,adam-paterson/blog,AlexKVal/Ghost,cwonrails/Ghost,epicmiller/pages,dbalders/Ghost,syaiful6/Ghost,daimaqiao/Ghost-Bridge,leonli/ghost,ivantedja/ghost,jomahoney/Ghost,acburdine/Ghost,bitjson/Ghost,AlexKVal/Ghost,jaswilli/Ghost,e10/Ghost,singular78/Ghost,TryGhost/Ghost,jorgegilmoreira/ghost,letsjustfixit/Ghost,jorgegilmoreira/ghost,ghostchina/Ghost-zh,lf2941270/Ghost,GroupxDev/javaPress,mohanambati/Ghost,kaychaks/kaushikc.org,NovaDevelopGroup/Academy,Elektro1776/javaPress,ngosinafrica/SiteForNGOs,JonSmith/Ghost,ngosinafrica/SiteForNGOs,Kikobeats/Ghost,hnarayanan/narayanan.co,dbalders/Ghost,ManRueda/manrueda-blog,stridespace/Ghost,syaiful6/Ghost,GroupxDev/javaPress,cwonrails/Ghost,Kaenn/Ghost,MadeOnMars/Ghost,sebgie/Ghost,ghostchina/Ghost-zh,leninhasda/Ghost,Kikobeats/Ghost,JonSmith/Ghost,rizkyario/Ghost,bosung90/Ghost,bitjson/Ghost