Fix signin form width bug
Fix signin form width bug

No issue. Fixes bug where signin form was not expanding to its full width as a result of some earlier global changes. This sets an explicit fluid width with a max-width fallback so that it's always the correct size.

influitive/crafters,jeonghwan-kim/Ghost,mayconxhh/Ghost,disordinary/Ghost,daihuaye/Ghost,arvidsvensson/Ghost,andrewconnell/Ghost,sebgie/Ghost,flpms/ghost-ad,rafaelstz/Ghost,edurangel/Ghost,dai-shi/Ghost,BlueHatbRit/Ghost,panezhang/Ghost,TryGhost/Ghost,PeterCxy/Ghost,wallmarkets/Ghost,Azzurrio/Ghost,kortemy/Ghost,Bunk/Ghost,klinker-apps/ghost,mnitchie/Ghost,notno/Ghost,ngosinafrica/SiteForNGOs,chris-yoon90/Ghost,rafaelstz/Ghost,pollbox/ghostblog,ryanbrunner/crafters,jiachenning/Ghost,makapen/Ghost,daihuaye/Ghost,yanntech/Ghost,mlabieniec/ghost-env,mdbw/ghost,FredericBernardo/Ghost,camilodelvasto/localghost,shrimpy/Ghost,smedrano/Ghost,Klaudit/Ghost,UsmanJ/Ghost,rito/Ghost,TribeMedia/Ghost,PeterCxy/Ghost,cncodog/Ghost-zh-codog,ErisDS/Ghost,aroneiermann/GhostJade,ClarkGH/Ghost,olsio/Ghost,petersucks/blog,davidenq/Ghost-Blog,jaswilli/Ghost,chevex/undoctrinate,JulienBrks/Ghost,Japh/shortcoffee,jiachenning/Ghost,r14r/fork_nodejs_ghost,ananthhh/Ghost,KnowLoading/Ghost,GarrethDottin/Habits-Design,javimolla/Ghost,denzelwamburu/denzel.xyz,Sebastian1011/Ghost,patterncoder/patterncoder,e10/Ghost,atandon/Ghost,flomotlik/Ghost,GarrethDottin/Habits-Design,benstoltz/Ghost,sceltoas/Ghost,Dnlyc/Ghost,klinker-apps/ghost,jgillich/Ghost,lowkeyfred/Ghost,Yarov/yarov,GroupxDev/javaPress,NovaDevelopGroup/Academy,cicorias/Ghost,vainglori0us/urban-fortnight,bbmepic/Ghost,gcamana/Ghost,MadeOnMars/Ghost,AlexKVal/Ghost,NamedGod/Ghost,hnarayanan/narayanan.co,panezhang/Ghost,ddeveloperr/Ghost,trunk-studio/Ghost,NovaDevelopGroup/Academy,Kikobeats/Ghost,etdev/blog,jamesslock/Ghost,gabfssilva/Ghost,morficus/Ghost,SkynetInc/steam,jaguerra/Ghost,Xibao-Lv/Ghost,bastianbin/Ghost,vainglori0us/urban-fortnight,no1lov3sme/Ghost,pedroha/Ghost,mohanambati/Ghost,zumobi/Ghost,ckousik/Ghost,leonli/ghost,stridespace/Ghost,AlexKVal/Ghost,telco2011/Ghost,jgillich/Ghost,rmoorman/Ghost,adam-paterson/blog,vloom/blog,sebgie/Ghost,mtvillwock/Ghost,aroneiermann/GhostJade,ghostchina/Ghost-zh,cicorias/Ghost,cncodog/Ghost-zh-codog,tksander/Ghost,lukekhamilton/Ghost,tidyui/Ghost,leninhasda/Ghost,cqricky/Ghost,ivanoats/ivanstorck.com,xiongjungit/Ghost,katrotz/blog.katrotz.space,dqj/Ghost,camilodelvasto/localghost,rouanw/Ghost,codeincarnate/Ghost,ngosinafrica/SiteForNGOs,edurangel/Ghost,rameshponnada/Ghost,yangli1990/Ghost,wspandihai/Ghost,johnnymitch/Ghost,LeandroNascimento/Ghost,ygbhf/Ghost,DesenTao/Ghost,icowan/Ghost,bisoe/Ghost,dggr/Ghost-sr,Romdeau/Ghost,mtvillwock/Ghost,jin/Ghost,singular78/Ghost,lowkeyfred/Ghost,yanntech/Ghost,exsodus3249/Ghost,theonlypat/Ghost,KnowLoading/Ghost,omaracrystal/Ghost,Elektro1776/javaPress,bosung90/Ghost,BayPhillips/Ghost,cwonrails/Ghost,duyetdev/islab,davidmenger/nodejsfan,dgem/Ghost,NikolaiIvanov/Ghost,handcode7/Ghost,leninhasda/Ghost,velimir0xff/Ghost,icowan/Ghost,mohanambati/Ghost,NikolaiIvanov/Ghost,edsadr/Ghost,shannonshsu/Ghost,djensen47/Ghost,tanbo800/Ghost,tyrikio/Ghost,vainglori0us/urban-fortnight,FredericBernardo/Ghost,hyokosdeveloper/Ghost,tksander/Ghost,etdev/blog,Japh/Ghost,developer-prosenjit/Ghost,Azzurrio/Ghost,petersucks/blog,k2byew/Ghost,zumobi/Ghost,ckousik/Ghost,STANAPO/Ghost,tyrikio/Ghost,Romdeau/Ghost,ddeveloperr/Ghost,Kikobeats/Ghost,ManRueda/Ghost,julianromera/Ghost,TryGhost/Ghost,UsmanJ/Ghost,GroupxDev/javaPress,letsjustfixit/Ghost,cwonrails/Ghost,delgermurun/Ghost,atandon/Ghost,mattchupp/blog,Kaenn/Ghost,devleague/uber-hackathon,Brunation11/Ghost,sceltoas/Ghost,Sebastian1011/Ghost,julianromera/Ghost,Kaenn/Ghost,dYale/blog,leonli/ghost,daimaqiao/Ghost-Bridge,javorszky/Ghost,jomahoney/Ghost,wemakeweb/Ghost,jin/Ghost,letsjustfixit/Ghost,woodyrew/Ghost,davidenq/Ghost-Blog,sfpgmr/Ghost,bitjson/Ghost,jiangjian-zh/Ghost,novaugust/Ghost,trunk-studio/Ghost,chris-yoon90/Ghost,mdbw/ghost,lethalbrains/Ghost,YY030913/Ghost,claudiordgz/Ghost,psychobunny/Ghost,madole/diverse-learners,Elektro1776/javaPress,Rovak/Ghost,sajmoon/Ghost,mohanambati/Ghost,acburdine/Ghost,leonli/ghost,dggr/Ghost-sr,rizkyario/Ghost,LeandroNascimento/Ghost,Remchi/Ghost,smedrano/Ghost,nmukh/Ghost,olsio/Ghost,woodyrew/Ghost,BlueHatbRit/Ghost,Trendy/Ghost,skmezanul/Ghost,no1lov3sme/Ghost,JohnONolan/Ghost,claudiordgz/Ghost,vloom/blog,thehogfather/Ghost,kaychaks/kaushikc.org,velimir0xff/Ghost,jomahoney/Ghost,akveo/akveo-blog,greenboxindonesia/Ghost,Japh/shortcoffee,manishchhabra/Ghost,sergeylukin/Ghost,imjerrybao/Ghost,manishchhabra/Ghost,RufusMbugua/TheoryOfACoder,hnq90/Ghost,sajmoon/Ghost,ThorstenHans/Ghost,qdk0901/Ghost,thehogfather/Ghost,obsoleted/Ghost,darvelo/Ghost,allanjsx/Ghost,cqricky/Ghost,devleague/uber-hackathon,ballPointPenguin/Ghost,anijap/PhotoGhost,karmakaze/Ghost,delgermurun/Ghost,bastianbin/Ghost,jacostag/Ghost,kevinansfield/Ghost,kolorahl/Ghost,shannonshsu/Ghost,dqj/Ghost,JulienBrks/Ghost,Brunation11/Ghost,ignasbernotas/nullifer,Elektro1776/javaPress,smaty1/Ghost,epicmiller/pages,e10/Ghost,sangcu/Ghost,load11/ghost,dYale/blog,ManRueda/manrueda-blog,handcode7/Ghost,dgem/Ghost,k2byew/Ghost,netputer/Ghost,Smile42RU/Ghost,devleague/uber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