Main CSS file: Clean-up and fix lint warnings
Main CSS file: Clean-up and fix lint warnings

Use 0 instead of 0px, clean-up two line breaks, to fix lint warning;
Three empty CSS blocks could also be removed.

skylarkcob/CodeMirror,flyskyko/CodeMirror,NeZaMy/CodeMirror2,kerabromsmu/CodeMirror,TechnicalPursuit/CodeMirror,alur/CodeMirror,nightwing/CodeMirror,jhnesk/CodeMirror,DustinH/CodeMirror,karevn/CodeMirror,ssxxue/CodeMirror,buchslava/CodeMirror,mtaran-google/CodeMirror,bgrins/CodeMirror,EasonYi/CodeMirror,kk9599/CodeMirror,rasata/CodeMirror,kk9599/CodeMirror,jessegrosjean/CodeMirror,bocharsky-bw/CodeMirror,schanzer/CodeMirror,Carreau/CodeMirror,davidpham87/CodeMirror,trumanliu/CodeMirror,fpco/codemirror,xeronith/CodeMirror,cben/CodeMirror,Ermlab/CodeMirror,skylarkcob/CodeMirror,happibum/CodeMirror-main,mtaran-google/CodeMirror,MarcelGerber/CodeMirror,Icenium/CodeMirror,jkaplon/CodeMirror,agendor/CodeMirror,bocharsky-bw/CodeMirror,loopspace/CodeMirror,sourcelair/CodeMirror,NumbersInternational/CodeMirror,manderson23/CodeMirror,ejgallego/CodeMirror,bfrohs/CodeMirror,increpare/CodeMirror,supriyantomaftuh/CodeMirror,nawroth/CodeMirror,Dominator008/CodeMirror,codio/CodeMirror,apatawari/CodeMirror,Dominator008/CodeMirror,symbla/CodeMirror,antimatter15/CodeMirror,INTELOGIE/CodeMirror,wbinnssmith/CodeMirror,agendor/CodeMirror,ksanaforge/CodeMirror,crazy4chrissi/CodeMirror,qiankun007/CodeMirror,symbla/CodeMirror,ashmind/CodeMirror,INTELOGIE/CodeMirror,mizchi/CodeMirror,amsul/CodeMirror,r7kamura/CodeMirror,kk9599/CodeMirror,nightwing/CodeMirror,TDaglis/CodeMirror,sanyaade-iot/CodeMirror,vanloswang/CodeMirror,fmoliveira/CodeMirror,djadmin/CodeMirror,amshali/CodeMirror,nightwing/CodeMirror,dperetti/CodeMirror,joshterrell805-historic/CodeMirror,manderson23/CodeMirror,joshterrell805-historic/CodeMirror,Aliccer/CodeMirror,fmoliveira/CodeMirror,notepadqq/CodeMirror,pinbe/CodeMirror,TDaglis/CodeMirror,sourcelair/CodeMirror,manderson23/CodeMirror,adobe/CodeMirror2,pjkui/CodeMirror,mtaran-google/CodeMirror,MarcelGerber/CodeMirror,anthonygego/CodeMirror,jayaprabhakar/CodeMirror,InternetGuru/CodeMirror,systay/CodeMirror,NumbersInternational/CodeMirror,pinbe/CodeMirror,hccampos/CodeMirror,vincentwoo/CodeMirror,r7kamura/CodeMirror,abdelouahabb/CodeMirror,adobe/CodeMirror2,vincentwoo/CodeMirror,kuangyeheng/CodeMirror,Navaneethsen/CodeMirror,nawroth/CodeMirror,alur/CodeMirror,d0liver/CodeMirror,ThebingServices/CodeMirror,djadmin/CodeMirror,ficristo/CodeMirror,EasonYi/CodeMirror,skylarkcob/CodeMirror,vanloswang/CodeMirror,kangkot/CodeMirror,rrandom/CodeMirror,karevn/CodeMirror,namin/CodeMirror,buchslava/CodeMirror,AlanWasTaken/codemirror,webida/CodeMirror,mightyguava/CodeMirror,tpphu/CodeMirror,antimatter15/CodeMirror,melpon/CodeMirror,grzegorzmazur/CodeMirror,apatawari/CodeMirror,bluesh55/CodeMirror,philuchansky/CodeMirror,fivetran/CodeMirror,ficristo/CodeMirror,melpon/CodeMirror,mizchi/CodeMirror,kerabromsmu/CodeMirror,sgoo/CodeMirror,antimatter15/CodeMirror,notepadqq/CodeMirror,bgrins/CodeMirror,namin/CodeMirror,dperetti/CodeMirror,elisee/CodeMirror,ZombieHippie/CodeMirror,loopspace/CodeMirror,fmoliveira/CodeMirror,vincentwoo/CodeMirror,wingify/CodeMirror,bluesh55/CodeMirror,SidPresse/CodeMirror,karthikeyansam/CodeMirror,bgrins/CodeMirror,Jisuanke/CodeMirror,qiankun007/CodeMirror,increpare/CodeMirror,Navaneethsen/CodeMirror,apatawari/CodeMirror,Dominator008/CodeMirror,sekcheong/CodeMirror,systay/CodeMirror,karthikeyansam/CodeMirror,morrisonwudi/CodeMirror,mightyguava/CodeMirror,TechnicalPursuit/CodeMirror,trumanliu/CodeMirror,shiren/CodeMirror,kolya-ay/CodeMirror,Navaneethsen/CodeMirror,sekcheong/CodeMirror,hccampos/CodeMirror,kangkot/CodeMirror,pabloferz/CodeMirror,abdelouahabb/CodeMirror,Jisuanke/CodeMirror,ssxxue/CodeMirror,pabloferz/CodeMirror,camellhf/CodeMirror,notepadqq/CodeMirror,codio/CodeMirror,ZombieHippie/CodeMirror,cintiamh/CodeMirror,Allenice/CodeMirror,KamranMackey/CodeMirror,pjkui/CodeMirror,axter/CodeMirror,Allenice/CodeMirror,sanyaade-iot/CodeMirror,ashmind/CodeMirror,Aliccer/CodeMirror,qweasd1/CodeMirror,codio/CodeMirror,dbarnett/CodeMirror,Aliccer/CodeMirror,webida/CodeMirror,pjkui/CodeMirror,bocharsky-bw/CodeMirror,agendor/CodeMirror,schanzer/CodeMirror,ThebingServices/CodeMirror,crazy4chrissi/CodeMirror,alur/CodeMirror,isdampe/CodeMirror,qweasd1/CodeMirror,InternetGuru/CodeMirror,davidpham87/CodeMirror,camellhf/CodeMirror,dperetti/CodeMirror,SidPresse/CodeMirror,InternetGuru/CodeMirror,CartoDB/CodeMirror,jayaprabhakar/CodeMirror,TDaglis/CodeMirror,rustemferreira/CodeMirror,mihailik/CodeMirror,elisee/CodeMirror,philuchansky/CodeMirror,shiren/CodeMirror,sourcelair/CodeMirror,jkaplon/CodeMirror,gkoberger/CodeMirror,camellhf/CodeMirror,Carreau/CodeMirror,ksanaforge/CodeMirror,thomasjm/CodeMirror,gkoberger/CodeMirror,NeZaMy/CodeMirror2,d0liver/CodeMirror,Icenium/CodeMirror,kerabromsmu/CodeMirror,fivetran/CodeMirror,supriyantomaftuh/CodeMirror,CartoDB/CodeMirror,pabloferz/CodeMirror,hccampos/CodeMirror,bfrohs/CodeMirror,michaelerobertsjr/CodeMirror,Icenium/CodeMirror,DustinH/CodeMirror,cintiamh/CodeMirror,happibum/CodeMirror-main,crazy4chrissi/CodeMirror,jhnesk/CodeMirror,increpare/CodeMirror,morrisonwudi/CodeMirror,shiren/CodeMirror,rasata/CodeMirror,philuchansky/CodeMirror,TechnicalPursuit/CodeMirror,sanyaade-iot/CodeMirror,thomasjm/CodeMirror,jkaplon/CodeMirror,djadmin/CodeMirror,xeronith/CodeMirror,elisee/CodeMirror,angelozerr/CodeMirror,r7kamura/CodeMirror,Jisuanke/CodeMirror,amshali/CodeMirror,qweasd1/CodeMirror,grzegorzmazur/CodeMirror,belph/CodeMirror,NumbersInternational/CodeMirror,bluesh55/CodeMirror,d0liver/CodeMirror,ficristo/CodeMirror,schanzer/CodeMirror,michaelerobertsjr/CodeMirror,ejgallego/CodeMirror,adobe/CodeMirror2,Ermlab/CodeMirror,namin/CodeMirror,qiankun007/CodeMirror,abdelouahabb/CodeMirror,thomasjm/CodeMirror,flyskyko/CodeMirror,supriyantomaftuh/CodeMirror,jayaprabhakar/CodeMirror,karevn/CodeMirror,tpphu/CodeMirror,NeZaMy/CodeMirror2,fpco/codemirror,symbla/CodeMirror,matthewbauer/CodeMirror,anthonygego/CodeMirror,AlanWasTaken/codemirror,pinbe/CodeMirror,jessegrosjean/CodeMirror,vanloswang/CodeMirror,ejgallego/CodeMirror,karthikeyansam/CodeMirror,hackmdio/CodeMirror,rasata/CodeMirror,mizchi/CodeMirror,dudb/CodeMirror,jessegrosjean/CodeMirror,dudb/CodeMirror,kangkot/CodeMirror,trumanliu/CodeMirror,ashmind/CodeMirror,dudb/CodeMirror,rrandom/CodeMirror,kevinushey/CodeMirror,hackmdio/CodeMirror,mihailik/CodeMirror,tpphu/CodeMirror,ZombieHippie/CodeMirror,grzegorzmazur/CodeMirror,buchslava/CodeMirror,cintiamh/CodeMirror,hackmdio/CodeMirror,webida/CodeMirror,rustemferreira/CodeMirror,anthonygego/CodeMirror,MarcelGerber/CodeMirror,SidPresse/CodeMirror,dbarnett/CodeMirror,michaelerobertsjr/CodeMirror,gkoberger/CodeMirror,nawroth/CodeMirror,isdampe/CodeMirror,xeronith/CodeMirror,GerHobbelt/CodeMirror2,matthewbauer/CodeMirror,kevinushey/CodeMirror,cben/CodeMirror,GerHobbelt/CodeMirror2,mihailik/CodeMirror,EasonYi/CodeMirror,KamranMackey/CodeMirror,ssxxue/CodeMirror,amsul/CodeMirror,AlanWasTaken/codemirror,axter/CodeMirror,INTELOGIE/CodeMirror,kolya-ay/CodeMirror,jpolitz/CodeMirror,rustemferreira/CodeMirror,ThebingServices/CodeMirror,angelozerr/CodeMirror,rrandom/CodeMirror,KamranMackey/CodeMirror,sgoo/CodeMirror,webida/CodeMirror,belph/CodeMirror,wingify/CodeMirror,isdampe/CodeMirror,amshali/CodeMirror,happibum/CodeMirror-main,sekcheong/CodeMirror,belph/CodeMirror,jpolitz/CodeMirror,ksanaforge/CodeMirror,axter/CodeMirror,dbarnett/CodeMirror,kuangyeheng/CodeMirror,loopspace/CodeMirror,kuangyeheng/CodeMirror,flyskyko/CodeMirror,wbinnssmith/CodeMirror,melpon/CodeMirror,mightyguava/CodeMirror,davidpham87/CodeMirror,matthewbauer/CodeMirror,systay/CodeMirror,morrisonwudi/CodeMirror,jpolitz/CodeMirror,DustinH/CodeMirror,Allenice/CodeMirror,wingify/CodeMirror,bfrohs/CodeMirror