Fix layout for buttons' row below content body
Fix layout for buttons' row below content body

ChangsungKim/TestRepository01,violetag/demo,naver/yobi,yona-projects/yona,naver/yobi,doortts/fork-yobi,ahb0327/yobi,yona-projects/yona,ahb0327/yobi,ihoneymon/yobi,bloodybear/yona,bloodybear/yona,bloodybear/yona,brainagenet/yobi,doortts/fork-yobi,ahb0327/yobi,ihoneymon/yobi,naver/yobi,yona-projects/yona,oolso/yobi,Limseunghwan/oss,doortts/fork-yobi,brainagenet/yobi,ChangsungKim/TestRepository01,yona-projects/yona,Limseunghwan/oss,doortts/forked-for-history,doortts/fork-yobi,Limseunghwan/oss,brainagenet/yobi,bloodybear/yona,violetag/demo,oolso/yobi,ihoneymon/yobi,oolso/yobi,doortts/forked-for-history,doortts/forked-for-history