Auto merge of #8328 - mskrzypkows:missing_css_style, r=Ms2ger
Auto merge of #8328 - mskrzypkows:missing_css_style, r=Ms2ger

Add missing css style for image_rendering_auto_a.html

There was a missing image position in the test which caused potentially 
wrong comparision of images in basic.list:
!= image_rendering_auto_a.html image_rendering_pixelated_a.html

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SimonSapin/servo,rnestler/servo,emilio/servo,splav/servo,splav/servo,eddyb/servo,ConnorGBrewster/servo,saneyuki/servo,peterjoel/servo,thiagopnts/servo,mattnenterprise/servo,peterjoel/servo,KiChjang/servo,DominoTree/servo,nnethercote/servo,cbrewster/servo,saneyuki/servo,mattnenterprise/servo,mattnenterprise/servo,steveklabnik/servo,dsandeephegde/servo,larsbergstrom/servo,avadacatavra/servo,nrc/servo,szeged/servo,nnethercote/servo,KiChjang/servo,thiagopnts/servo,peterjoel/servo,cbrewster/servo,SimonSapin/servo,jimberlage/servo,pyfisch/servo,thiagopnts/servo,notriddle/servo,canaltinova/servo,dsandeephegde/servo,mbrubeck/servo,DominoTree/servo,paulrouget/servo,mbrubeck/servo,pyfisch/servo,DominoTree/servo,KiChjang/servo,fiji-flo/servo,szeged/servo,nnethercote/servo,saneyuki/servo,rnestler/servo,nrc/servo,DominoTree/servo,saneyuki/servo,splav/servo,emilio/servo,larsbergstrom/servo,avadacatavra/servo,larsbergstrom/servo,mbrubeck/servo,pyfisch/servo,paulrouget/servo,canaltinova/servo,rnestler/servo,upsuper/servo,notriddle/servo,anthgur/servo,nnethercote/servo,dsandeephegde/servo,emilio/servo,steveklabnik/servo,fiji-flo/servo,pyfisch/servo,KiChjang/servo,dati91/servo,ConnorGBrewster/servo,emilio/servo,canaltinova/servo,upsuper/servo,emilio/servo,szeged/servo,jimberlage/servo,steveklabnik/servo,steveklabnik/servo,steveklabnik/servo,emilio/servo,fiji-flo/servo,eddyb/servo,nnethercote/servo,dsandeephegde/servo,dati91/servo,thiagopnts/servo,mbrubeck/servo,fiji-flo/servo,nrc/servo,emilio/servo,anthgur/servo,notriddle/servo,fiji-flo/servo,saneyuki/servo,canaltinova/servo,jimberlage/servo,steveklabnik/servo,notriddle/servo,emilio/servo,avadacatavra/servo,sadmansk/servo,saneyuki/servo,eddyb/servo,peterjoel/servo,upsuper/servo,mattnenterprise/servo,nnethercote/servo,peterjoel/servo,anthgur/servo,CJ8664/servo,DominoTree/servo,cbrewster/servo,dati91/servo,peterjoel/servo,ConnorGBrewster/servo,larsbergstrom/servo,anthgur/servo,sadmansk/servo,avadacatavra/servo,mbrubeck/servo,upsuper/servo,paulrouget/servo,nnethercote/servo,cbrewster/servo,larsbergstrom/servo,larsbergstrom/servo,SimonSapin/servo,avadacatavra/servo,eddyb/servo,dati91/servo,dsandeephegde/servo,saneyuki/servo,paulrouget/servo,jimberlage/servo,ConnorGBrewster/servo,szeged/servo,CJ8664/servo,emilio/servo,steveklabnik/servo,eddyb/servo,paulrouget/servo,mattnenterprise/servo,nnethercote/servo,upsuper/servo,dsandeephegde/servo,cbrewster/servo,paulrouget/servo,dsandeephegde/servo,notriddle/servo,SimonSapin/servo,splav/servo,nrc/servo,CJ8664/servo,cbrewster/servo,KiChjang/servo,CJ8664/servo,sadmansk/servo,avadacatavra/servo,peterjoel/servo,thiagopnts/servo,dati91/servo,fiji-flo/servo,rnestler/servo,dati91/servo,anthgur/servo,emilio/servo,SimonSapin/servo,paulrouget/servo,pyfisch/servo,mattnenterprise/servo,ConnorGBrewster/servo,jimberlage/servo,rnestler/servo,sadmansk/servo,DominoTree/servo,mattnenterprise/servo,CJ8664/servo,ConnorGBrewster/servo,jimberlage/servo,anthgur/servo,upsuper/servo,rnestler/servo,larsbergstrom/servo,jimberlage/servo,thiagopnts/servo,CJ8664/servo,nrc/servo,saneyuki/servo,pyfisch/servo,eddyb/servo,notriddle/servo,mattnenterprise/servo,cbrewster/servo,splav/servo,avadacatavra/servo,larsbergstrom/servo,thiagopnts/servo,szeged/servo,thiagopnts/servo,szeged/servo,DominoTree/servo,paulrouget/servo,notriddle/servo,SimonSapin/servo,notriddle/servo,pyfisch/servo,jimberlage/servo,splav/servo,splav/servo,nrc/servo,SimonSapin/servo,KiChjang/servo,nrc/servo,upsuper/servo,larsbergstrom/servo,nnethercote/servo,szeged/servo,canaltinova/servo,notriddle/servo,pyfisch/servo,paulrouget/servo,szeged/servo,eddyb/servo,peterjoel/servo,CJ8664/servo,nnethercote/servo,peterjoel/servo,canaltinova/servo,SimonSapin/servo,cbrewster/servo,KiChjang/servo,mbrubeck/servo,sadmansk/servo,KiChjang/servo,saneyuki/servo,szeged/servo,dati91/servo,dsandeephegde/servo,avadacatavra/servo,KiChjang/servo,notriddle/servo,fiji-flo/servo,sadmansk/servo,dati91/servo,peterjoel/servo,mbrubeck/servo,upsuper/servo,szeged/servo,rnestler/servo,jimberlage/servo,rnestler/servo,DominoTree/servo,sadmansk/servo,splav/servo,DominoTree/servo,sadmansk/servo,mbrubeck/servo,anthgur/servo,larsbergstrom/servo,saneyuki/servo,ConnorGBrewster/servo,DominoTree/servo,splav/servo,paulrouget/servo,canaltinova/servo,CJ8664/servo,KiChjang/servo,pyfisch/servo,splav/servo,pyfisch/servo,anthgur/servo,eddyb/servo,fiji-flo/servo,ConnorGBrewster/servo,canaltinova/servo