Make buttons full width for mobile
Make buttons full width for mobile

- Use box sizing mixin
- Set width to be 100% for 640px and below

quis/notify-public-research-prototype,joelanman/govuk_prototype_kit,timpaul/registers-hackday,abbott567/govuk_prototype_kit,Demwunz/esif-prototype,chrishanes/pvb_prisoner_proto,mharrington/nhs_prototype_kit,OrcaTom/dwp_contentpatterns,timpaul/govuk_transaction_prototype_kit,dwpdigitaltech/digital-debt,benjeffreys/hmcts-idam-proto,st3v3nhunt/prototype-ers,joelanman/govuk_prototype_kit,glancyea/tagtest,rivalee/licensing-prototype,bencullimore/nhsers,timpaul/nhs_prototype_kit,BucksCountyCouncil/verify-local-patterns,benjeffreys/hmcts-idam-proto,DilwoarH/GDS-Prototype-DM-SavedSearch,hannalaakso/accessible-timeout-warning,timpaul/GOVUKCountrySelector,abbott567/govuk_prototype_kit,gup-dwp/pip-prototype-v2,Demwunz/esif-prototype,paulpod/invgov,paulpod/invgov,hannalaakso/accessible-timeout-warning,timpaul/govuk_transaction_prototype_kit,UKHomeOffice/ReportTerroristMaterialPrototype,dwpdigitaltech/digital-debt,dwpdigitaltech/hrt-prototype,nhsalpha/nhs_prototype_kit,danblundell/verify-local-patterns,DilwoarH/GDS-Prototype-DM-SavedSearch,st3v3nhunt/prototype-ers,samwake/hoddat-cofc-caseworking,rivalee/licensing-prototype,jeremygillies-ea/data_returns_prototype,davedark/proto-timeline,jeremygillies-ea/data_returns_prototype,abbott567/govuk_prototype_kit,paulpod/invgov,gup-dwp/pip-prototype-v2,samwake/hoddat-cofc-caseworking,antimega/performance-self-serve-prototype,samwake/hoddat-cofc-caseworking,bencullimore/nhsers,gavinwye/govuk_prototype_kit,LandRegistry/dmp-prototype,quis/notify-public-research-prototype,PurpleBooth/govuk_prototype_kit,DilwoarH/GDS-Prototype-DM-SavedSearch,antimega/performance-self-serve-prototype,rivalee/local-gov-links,bencullimore/nhsers,kenmaddison-scc/verify-local-patterns,tsmorgan/marx,chrishanes/pvb_prisoner_proto,tsmorgan/marx,kenmaddison-scc/verify-local-patterns,mharrington/nhs_prototype_kit,timpaul/nh_prototype_kit,karlparton/my-govuk,danblundell/verify-local-patterns,timpaul/nhs_prototype_kit,OrcaTom/dwp_contentpatterns,tsmorgan/marx,dwpdigitaltech/hrt-prototype,danblundell/verify-local-patterns,dwpdigitaltech/ejs-prototype,dwpdigitaltech/ejs-prototype,BucksCountyCouncil/verify-local-patterns,alphagov/govuk_prototype_kit,dwp-rti-prototype/rti-ux-new-prototype,mharrington/nhs_prototype_kit,benjeffreys/hmcts-idam-proto,nhsalpha/nhs_prototype_kit,joelanman/govuk_transaction_prototype_kit,arminio/govuk_prototype_kit,dwpdigitaltech/digital-debt,companieshouse/ch-accounts-prototype,antimega/cites-prototype,davedark/proto-timeline,kenmaddison-scc/verify-local-patterns,glancyea/tagtest,companieshouse/ch-accounts-prototype,Demwunz/esif-prototype,OrcaTom/dwp_contentpatterns,dwp-rti-prototype/rti-ux-new-prototype,dwpdigitaltech/hrt-prototype,alphagov/govuk_prototype_kit,gup-dwp/pip-prototype-v2,LandRegistry/dmp-prototype,glancyea/tagtest,davedark/proto-timeline,dwpdigitaltech/ejs-prototype,dwp-rti-prototype/rti-ux-new-prototype,PurpleBooth/govuk_prototype_kit,timpaul/registers-hackday,st3v3nhunt/prototype-ers,gavinwye/govuk_prototype_kit,nhsbsa/ppc-prototype,st3v3nhunt/prototype-ers,jeremygillies-ea/data_returns_prototype,karlparton/my-govuk,tsmorgan/jsa-complaints,nhsbsa/ppc-prototype,karlparton/my-govuk,joelanman/govuk_prototype_kit,timpaul/GOVUKCountrySelector,hannalaakso/accessible-timeout-warning,joelanman/govuk_transaction_prototype_kit,BucksCountyCouncil/verify-local-patterns,UKHomeOffice/ReportTerroristMaterialPrototype,bencullimore/nhsers,arminio/govuk_prototype_kit,nhsalpha/nhs_prototype_kit,nhsalpha/nhs_prototype_kit,tsmorgan/jsa-complaints,alphagov/govuk_prototype_kit,timpaul/nh_prototype_kit,arminio/govuk_prototype_kit,nhsbsa/ppc-prototype,chrishanes/pvb_prisoner_proto,quis/notify-public-research-prototype,rivalee/local-gov-links,LandRegistry/dmp-prototype,antimega/cites-prototype