apply margin on alert banners only when there is one or more alerts
apply margin on alert banners only when there is one or more alerts

stoplightio/gitlabhq,mmkassem/gitlabhq,stoplightio/gitlabhq,axilleas/gitlabhq,iiet/iiet-git,openwide-java/gitlabhq,LUMC/gitlabhq,LUMC/gitlabhq,darkrasid/gitlabhq,jirutka/gitlabhq,dreampet/gitlab,dplarson/gitlabhq,dplarson/gitlabhq,jirutka/gitlabhq,axilleas/gitlabhq,htve/GitlabForChinese,LUMC/gitlabhq,jirutka/gitlabhq,LUMC/gitlabhq,t-zuehlsdorff/gitlabhq,stoplightio/gitlabhq,iiet/iiet-git,openwide-java/gitlabhq,stoplightio/gitlabhq,dreampet/gitlab,htve/GitlabForChinese,openwide-java/gitlabhq,t-zuehlsdorff/gitlabhq,dplarson/gitlabhq,dreampet/gitlab,t-zuehlsdorff/gitlabhq,iiet/iiet-git,mmkassem/gitlabhq,htve/GitlabForChinese,axilleas/gitlabhq,darkrasid/gitlabhq,mmkassem/gitlabhq,darkrasid/gitlabhq,openwide-java/gitlabhq,htve/GitlabForChinese,t-zuehlsdorff/gitlabhq,jirutka/gitlabhq,iiet/iiet-git,darkrasid/gitlabhq,mmkassem/gitlabhq,dplarson/gitlabhq,dreampet/gitlab,axilleas/gitlabhq